[815] | 1 | using System;
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| 2 | using System.Data;
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| 3 | using System.Data.Common;
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| 4 |
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| 5 | namespace IndianHealthService.BMXNet
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| 6 | {
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| 7 | public class BMXNetDataAdapter : DbDataAdapter, IDbDataAdapter
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| 8 | {
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| 9 | private BMXNetCommand m_selectCommand;
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| 10 | private BMXNetCommand m_insertCommand;
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| 11 | private BMXNetCommand m_updateCommand;
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| 12 | private BMXNetCommand m_deleteCommand;
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| 13 |
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| 14 | /*
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| 15 | * Inherit from Component through DbDataAdapter. The event
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| 16 | * mechanism is designed to work with the Component.Events
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| 17 | * property. These variables are the keys used to find the
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| 18 | * events in the components list of events.
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| 19 | */
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| 20 | static private readonly object EventRowUpdated = new object();
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| 21 | static private readonly object EventRowUpdating = new object();
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| 22 |
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| 23 | public BMXNetDataAdapter()
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| 24 | {
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| 25 | }
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| 26 |
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| 27 | new public BMXNetCommand SelectCommand
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| 28 | {
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| 29 | get { return m_selectCommand; }
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| 30 | set { m_selectCommand = value; }
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| 31 | }
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| 32 |
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| 33 | IDbCommand IDbDataAdapter.SelectCommand
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| 34 | {
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| 35 | get { return m_selectCommand; }
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| 36 | set { m_selectCommand = (BMXNetCommand)value; }
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| 37 | }
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| 38 |
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| 39 | new public BMXNetCommand InsertCommand
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| 40 | {
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| 41 | get { return m_insertCommand; }
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| 42 | set { m_insertCommand = value; }
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| 43 | }
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| 44 |
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| 45 | IDbCommand IDbDataAdapter.InsertCommand
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| 46 | {
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| 47 | get { return m_insertCommand; }
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| 48 | set { m_insertCommand = (BMXNetCommand)value; }
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| 49 | }
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| 50 |
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| 51 | new public BMXNetCommand UpdateCommand
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| 52 | {
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| 53 | get { return m_updateCommand; }
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| 54 | set { m_updateCommand = value; }
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| 55 | }
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| 56 |
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| 57 | IDbCommand IDbDataAdapter.UpdateCommand
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| 58 | {
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| 59 | get { return m_updateCommand; }
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| 60 | set { m_updateCommand = (BMXNetCommand)value; }
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| 61 | }
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| 62 |
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| 63 | new public BMXNetCommand DeleteCommand
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| 64 | {
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| 65 | get { return m_deleteCommand; }
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| 66 | set { m_deleteCommand = value; }
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| 67 | }
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| 68 |
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| 69 | IDbCommand IDbDataAdapter.DeleteCommand
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| 70 | {
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| 71 | get { return m_deleteCommand; }
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| 72 | set { m_deleteCommand = (BMXNetCommand)value; }
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| 73 | }
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| 74 |
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| 75 | /*
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| 76 | * Implement abstract methods inherited from DbDataAdapter.
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| 77 | */
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| 78 |
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| 79 | public override int Fill(
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| 80 | DataSet ds
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| 81 | )
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| 82 | {
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| 83 | //The inital call to base.fill calls the RPC which loads up the array
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| 84 | //After base.fill returns, create a datareader
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| 85 | BMXNetConnection bmxConn = (BMXNetConnection) this.SelectCommand.Connection;
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| 86 | RPMSDb bmxDB = bmxConn.RPMSDb;
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| 87 |
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| 88 | DataTable dt = new DataTable();
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| 89 |
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| 90 | //Execute the RPC call
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| 91 | base.Fill(dt);
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| 92 | //Get the table name
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| 93 | dt.TableName = bmxDB.ResultSets[0].fmFileID;
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| 94 | dt.ExtendedProperties.Add("fmSeed", bmxDB.ResultSets[0].fmSeed);
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| 95 |
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| 96 |
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| 97 | string sParentTable = dt.TableName;
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| 98 |
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| 99 | //Add the first table to the DataSet
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| 100 | ds.Tables.Add(dt);
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| 101 |
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| 102 | //If bmxDB resultset array count is greater than 1
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| 103 | int nSets = bmxDB.ResultSets.GetUpperBound(0) + 1;
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| 104 |
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| 105 | if (nSets > 1)
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| 106 | {
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| 107 | //Set primary key for first table
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| 108 | string sKeyField = bmxDB.ResultSets[0].fmKeyField;
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| 109 | DataColumn dcKey = dt.Columns[sKeyField];
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| 110 | DataColumn[] dcKeys = new DataColumn[1];
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| 111 | dcKeys[0] = dcKey;
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| 112 | dt.PrimaryKey = dcKeys;
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| 113 |
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| 114 | string[] sRelations = new string[nSets];
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| 115 |
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| 116 | //loop and get the rest of the tables
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| 117 | for (int k = 1; k < nSets; k++)
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| 118 | {
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| 119 | //Increment the current recordset counter in bmxDB
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| 120 | bmxDB.CurrentRecordSet++;
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| 121 | //Create the next table
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| 122 | dt = new DataTable();
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| 123 | //Fill it
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| 124 | base.Fill(dt);
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| 125 | //Get the table name
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| 126 | string sChildTable = bmxDB.ResultSets[k].fmFileID;
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| 127 | dt.TableName = sChildTable;
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| 128 | //Add it to the dataset
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| 129 | ds.Tables.Add(dt);
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| 130 |
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| 131 | //Get the foreign key field
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| 132 | string sForeignKey = bmxDB.ResultSets[k].fmForeignKey;
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| 133 |
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| 134 | //Set the data relationship
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| 135 | string sParentKey;
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| 136 | sParentKey = "BMXIEN";
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| 137 | sParentKey = "PATIENT_IEN";
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| 138 |
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| 139 | DataRelation dr = new DataRelation("Relation" + k.ToString() , //Relation Name
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| 140 | ds.Tables[sParentTable].Columns[sParentKey], //; //parent
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| 141 | ds.Tables[sChildTable].Columns[sForeignKey]) ;//child
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| 142 | ds.Relations.Add(dr);
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| 143 | }
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| 144 | bmxDB.CurrentRecordSet = 0;
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| 145 | }
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| 146 | return dt.Rows.Count;
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| 147 | }
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| 148 |
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| 149 | override protected DataTable FillSchema(
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| 150 | DataTable dataTable,
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| 151 | SchemaType schemaType,
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| 152 | IDbCommand command,
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| 153 | CommandBehavior behavior
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| 154 | )
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| 155 | {
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| 156 | behavior = CommandBehavior.SchemaOnly;
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| 157 | BMXNetDataReader dReader =(BMXNetDataReader) command.ExecuteReader(behavior);
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| 158 | DataTable dtSchema = dReader.GetSchemaTable();
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| 159 | return dtSchema;
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| 160 | }
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| 161 |
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| 162 | override protected int Update(
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| 163 | DataRow[] dataRows,
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| 164 | DataTableMapping tableMapping
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| 165 | )
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| 166 | {
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| 167 | //Build UpdateCommand's m_sCmdText using UpdateCommand's parameters
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| 168 | // and data in dataRows;
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| 169 | // execute non query and increment nRet;
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| 170 |
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| 171 | string sCmd = "";
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| 172 | int nRecordsAffected = 0;
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| 173 |
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| 174 | //Get recordset-level info from parameters
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| 175 | BMXNetParameter parm = (BMXNetParameter) UpdateCommand.Parameters[0];
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| 176 | string sFileID = parm.SourceColumn;
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| 177 | parm = (BMXNetParameter) UpdateCommand.Parameters[1];
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| 178 | string sKeyField = parm.SourceColumn;
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| 179 | string sKeyID = "";
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| 180 | char[] cRecDelim = new char[1];
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| 181 | cRecDelim[0] = (char) 30;
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| 182 |
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| 183 | string sValue = "";
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| 184 | string sFMFieldID;
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| 185 | string sColumnName;
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| 186 | int nColIndex;
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| 187 |
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| 188 | //Process deletions
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| 189 | foreach (DataRow r in dataRows)
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| 190 | {
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| 191 | if (r.RowState == DataRowState.Deleted)
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| 192 | {
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| 193 | r.RejectChanges(); //so that I can get to the row id
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| 194 | //Build DAS
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| 195 | char cSep = Convert.ToChar(",");
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| 196 | string[] saKeyFields = sKeyField.Split(cSep);
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| 197 | string sTmp = "";
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| 198 | for (int j = 0; j < saKeyFields.GetLength(0); j++)
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| 199 | {
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| 200 | if (saKeyFields[j] != "")
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| 201 | {
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| 202 | if (j > 0)
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| 203 | sTmp = sTmp + ",";
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| 204 | if (j == saKeyFields.GetLength(0) - 1)
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| 205 | sTmp += "-";
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| 206 | sTmp += r[saKeyFields[j]];
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| 207 | }
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| 208 | }
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| 209 | sCmd = sTmp;
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| 210 | sCmd = sFileID + "^" + sCmd + "^";
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| 211 | UpdateCommand.CommandText = "UPDATE " + sCmd;
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| 212 | int nRet = this.UpdateCommand.ExecuteNonQuery();
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| 213 | r.Delete();
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| 214 | nRecordsAffected += nRet;
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| 215 | }
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| 216 | }
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| 217 |
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| 218 | //Process Edits and Adds
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| 219 | foreach (DataRow r in dataRows)
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| 220 | {
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| 221 | if (r.RowState != DataRowState.Deleted)
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| 222 | {
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| 223 | string sMsg = "";
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| 224 | sKeyID = "";
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| 225 | for (int j=2; j < UpdateCommand.Parameters.Count; j++)
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| 226 | {
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| 227 | parm = (BMXNetParameter) UpdateCommand.Parameters[j];
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| 228 | sColumnName = parm.ParameterName;
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| 229 | sFMFieldID = parm.SourceColumn;
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| 230 | //Find a column id in r whose column name is sColumnName
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| 231 | nColIndex = -1;
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| 232 | for (int k = 0; k < r.Table.Columns.Count; k ++)
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| 233 | {
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| 234 | if (r.Table.Columns[k].ColumnName == sColumnName)
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| 235 | {
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| 236 | nColIndex = k;
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| 237 | break;
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| 238 | }
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| 239 | }
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| 240 | if (nColIndex > -1)
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| 241 | {
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| 242 | if (r.ItemArray[nColIndex].GetType() == typeof(System.DateTime))
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| 243 | {
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| 244 | DateTime dValue = (DateTime) r.ItemArray[nColIndex];
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| 245 | if ((dValue.Minute == 0) && (dValue.Hour == 0))
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| 246 | {
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| 247 | sValue = dValue.ToString("M-d-yyyy");
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| 248 | }
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| 249 | else
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| 250 | {
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| 251 | sValue = dValue.ToString("M-d-yyyy@HH:mm");
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| 252 | }
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| 253 | }
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| 254 | else
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| 255 | {
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| 256 | sValue = r.ItemArray[nColIndex].ToString();
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| 257 | }
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| 258 | if (parm.IsKey == false)
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| 259 | {
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| 260 | if (sMsg != "")
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| 261 | sMsg += (char) 30;
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| 262 | sMsg += sFMFieldID + "|" + sValue;
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| 263 | }
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| 264 | }
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| 265 | switch (sFMFieldID)
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| 266 | {
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| 267 | case ".0001":
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| 268 | if (sKeyID == "")
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| 269 | {
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| 270 | sKeyID = sValue + ",";
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| 271 | }
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| 272 | else
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| 273 | {
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| 274 | sKeyID = sValue + "," + sKeyID;
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| 275 | }
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| 276 | break;
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| 277 | case ".001":
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| 278 | if (sKeyID == "")
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| 279 | {
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| 280 | sKeyID = sValue;
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| 281 | }
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| 282 | else
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| 283 | {
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| 284 | sKeyID = sKeyID + sValue;
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| 285 | }
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| 286 | break;
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| 287 | default:
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| 288 | break;
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| 289 |
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| 290 | }
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| 291 | }
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| 292 | sCmd = sFileID + "^" + sKeyID + "^" + sMsg;
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| 293 | UpdateCommand.CommandText = "UPDATE " + sCmd;
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| 294 | int nRet = this.UpdateCommand.ExecuteNonQuery();
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| 295 | nRecordsAffected += nRet;
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| 296 | }//end if RowState != deleted
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| 297 | }//end for
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| 298 |
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| 299 | return nRecordsAffected;
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| 300 | }
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| 301 |
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| 302 | override protected RowUpdatedEventArgs CreateRowUpdatedEvent(DataRow dataRow, IDbCommand command, StatementType statementType, DataTableMapping tableMapping)
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| 303 | {
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| 304 | return new BMXNetRowUpdatedEventArgs(dataRow, command, statementType, tableMapping);
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| 305 | }
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| 306 |
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| 307 | override protected RowUpdatingEventArgs CreateRowUpdatingEvent(DataRow dataRow, IDbCommand command, StatementType statementType, DataTableMapping tableMapping)
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| 308 | {
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| 309 | return new BMXNetRowUpdatingEventArgs(dataRow, command, statementType, tableMapping);
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| 310 | }
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| 311 |
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| 312 | override protected void OnRowUpdating(RowUpdatingEventArgs value)
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| 313 | {
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| 314 | BMXNetRowUpdatingEventHandler handler = (BMXNetRowUpdatingEventHandler) Events[EventRowUpdating];
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| 315 | if ((null != handler) && (value is BMXNetRowUpdatingEventArgs))
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| 316 | {
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| 317 | handler(this, (BMXNetRowUpdatingEventArgs) value);
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| 318 | }
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| 319 | }
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| 320 |
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| 321 | override protected void OnRowUpdated(RowUpdatedEventArgs value)
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| 322 | {
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| 323 | BMXNetRowUpdatedEventHandler handler = (BMXNetRowUpdatedEventHandler) Events[EventRowUpdated];
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| 324 | if ((null != handler) && (value is BMXNetRowUpdatedEventArgs))
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| 325 | {
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| 326 | handler(this, (BMXNetRowUpdatedEventArgs) value);
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| 327 | }
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| 328 | }
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| 329 |
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| 330 | public event BMXNetRowUpdatingEventHandler RowUpdating
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| 331 | {
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| 332 | add { Events.AddHandler(EventRowUpdating, value); }
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| 333 | remove { Events.RemoveHandler(EventRowUpdating, value); }
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| 334 | }
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| 335 |
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| 336 | public event BMXNetRowUpdatedEventHandler RowUpdated
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| 337 | {
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| 338 | add { Events.AddHandler(EventRowUpdated, value); }
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| 339 | remove { Events.RemoveHandler(EventRowUpdated, value); }
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| 340 | }
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| 341 | }
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| 342 |
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| 343 | public delegate void BMXNetRowUpdatingEventHandler(object sender, BMXNetRowUpdatingEventArgs e);
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| 344 | public delegate void BMXNetRowUpdatedEventHandler(object sender, BMXNetRowUpdatedEventArgs e);
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| 345 |
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| 346 | public class BMXNetRowUpdatingEventArgs : RowUpdatingEventArgs
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| 347 | {
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| 348 | public BMXNetRowUpdatingEventArgs(DataRow row, IDbCommand command, StatementType statementType, DataTableMapping tableMapping)
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| 349 | : base(row, command, statementType, tableMapping)
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| 350 | {
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| 351 | }
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| 352 |
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| 353 | // Hide the inherited implementation of the command property.
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| 354 | new public BMXNetCommand Command
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| 355 | {
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| 356 | get { return (BMXNetCommand)base.Command; }
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| 357 | set { base.Command = value; }
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| 358 | }
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| 359 | }
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| 360 |
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| 361 | public class BMXNetRowUpdatedEventArgs : RowUpdatedEventArgs
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| 362 | {
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| 363 | public BMXNetRowUpdatedEventArgs(DataRow row, IDbCommand command, StatementType statementType, DataTableMapping tableMapping)
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| 364 | : base(row, command, statementType, tableMapping)
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| 365 | {
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| 366 | }
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| 367 |
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| 368 | // Hide the inherited implementation of the command property.
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| 369 | new public BMXNetCommand Command
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| 370 | {
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| 371 | get { return (BMXNetCommand)base.Command; }
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| 372 | }
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| 373 | }
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| 374 | }
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