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2 Calling a Custom Remote Procedure call (RPC) registered in VA FileMan’s REMOTE PROCEDURE file that results in a DataTable. You must design your remote procedure’s M routine to build its result its data in the specific format described later in this document.
3 </div><p />
4 <b>Namespace:</b>
5  <a href="58d4523c-9538-8ef8-a06c-5ae73a5250ff.htm">IndianHealthService.BMXNet</a><br />
6 <b>Assembly:</b>
7  <span sdata="assembly">BMXNET40</span> (in BMXNET40.dll)<h1 class="heading"><span onclick="ExpandCollapse(syntaxToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(syntaxToggle, event)" tabindex="0"><img id="syntaxToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Syntax</span></h1><div id="syntaxSection" class="section" name="collapseableSection" style=""><div id="syntaxCodeBlocks"><table class="filter" cellspacing="0" cellpadding="0"><tr id="curvedSyntaxTabs"><td class="leftTab" x-lang="CSharp"> </td><td class="middleTab" x-lang="CSharp"> </td><td class="rightTab" x-lang="CSharp"> </td><td class="leftTab" x-lang="VisualBasic"> </td><td class="middleTab" x-lang="VisualBasic"> </td><td class="rightTab" x-lang="VisualBasic"> </td><td class="leftTab" x-lang="ManagedCPlusPlus"> </td><td class="middleTab" x-lang="ManagedCPlusPlus"> </td><td class="rightTab" x-lang="ManagedCPlusPlus"> </td></tr><tr class="tabs" id="syntaxTabs"><td class="leftGrad" x-lang="CSharp"> </td><td class="tab" x-lang="CSharp" onclick="changeLanguage(data, 'CSharp', 'cs');">C#</td><td class="rightGrad" x-lang="CSharp"> </td><td class="leftGrad" x-lang="VisualBasic"> </td><td class="tab" x-lang="VisualBasic" onclick="changeLanguage(data, 'VisualBasic', 'vb');">Visual Basic</td><td class="rightGrad" x-lang="VisualBasic"> </td><td class="leftGrad" x-lang="ManagedCPlusPlus"> </td><td class="tab" x-lang="ManagedCPlusPlus" onclick="changeLanguage(data, 'ManagedCPlusPlus', 'cpp');">Visual C++</td><td class="rightGrad" x-lang="ManagedCPlusPlus"> </td></tr></table><div id="syntaxBlocks"><div class="code" x-lang="CSharp"><div id="CSharpDeclarationSection"><pre><a href="http://msdn2.microsoft.com/en-us/library/9186hy08" target="_blank">DataTable</a> <span class="identifier">TableFromCommand</span>(
8 <a href="http://msdn2.microsoft.com/en-us/library/s1wwdcbf" target="_blank">string</a> <span class="parameter">aCommand</span>,
9 <a href="http://msdn2.microsoft.com/en-us/library/s1wwdcbf" target="_blank">string</a> <span class="parameter">aContext</span>
10)</pre></div></div><div class="code" x-lang="VisualBasic"><div id="VisualBasicDeclarationSection"><pre><span class="keyword">Function</span> <span class="identifier">TableFromCommand</span> ( _
11 <span class="parameter">aCommand</span> <span class="keyword">As</span> <a href="http://msdn2.microsoft.com/en-us/library/s1wwdcbf" target="_blank">String</a>, _
12 <span class="parameter">aContext</span> <span class="keyword">As</span> <a href="http://msdn2.microsoft.com/en-us/library/s1wwdcbf" target="_blank">String</a> _
13) <span class="keyword">As</span> <a href="http://msdn2.microsoft.com/en-us/library/9186hy08" target="_blank">DataTable</a></pre></div></div><div class="code" x-lang="ManagedCPlusPlus"><div id="ManagedCPlusPlusDeclarationSection"><pre><a href="http://msdn2.microsoft.com/en-us/library/9186hy08" target="_blank">DataTable</a>^ <span class="identifier">TableFromCommand</span>(
14 <a href="http://msdn2.microsoft.com/en-us/library/s1wwdcbf" target="_blank">String</a>^ <span class="parameter">aCommand</span>,
15 <a href="http://msdn2.microsoft.com/en-us/library/s1wwdcbf" target="_blank">String</a>^ <span class="parameter">aContext</span>
16)</pre></div></div></div></div><div id="parameters"><h4 class="subHeading">Parameters</h4><dl paramName="aCommand"><dt><span class="parameter">aCommand</span></dt><dd><a href="http://msdn2.microsoft.com/en-us/library/s1wwdcbf" target="_blank">String</a><br />The co /// The name of the RPC </dd></dl><dl paramName="aContext"><dt><span class="parameter">aContext</span></dt><dd><a href="http://msdn2.microsoft.com/en-us/library/s1wwdcbf" target="_blank">String</a><br />The AppContext to set prior to the call</dd></dl></div><h4 class="subHeading">Return Value</h4>The resulting DataTable</div><h1 class="heading"><span onclick="ExpandCollapse(remarksToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(remarksToggle, event)" tabindex="0"><img id="remarksToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Remarks</span></h1><div id="remarksSection" class="section" name="collapseableSection" style="">
17 Normally the AppContext is set once, after logging into the BMX, with a
18 single AppContext for the current applications or specified in every RPC call.
19 </div><h1 class="heading"><span onclick="ExpandCollapse(exampleToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(exampleToggle, event)" tabindex="0"><img id="exampleToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Examples</span></h1><div id="exampleSection" class="section" name="collapseableSection" style="">
20 The VEN namespace is for PCC+ and the example below would be used at the beginning
21 of a PCC+ application.
22 <div class="code"><table width="100%" cellspacing="0" cellpadding="0"><tr><th><span class="copyCode" onclick="CopyCode(this)" onkeypress="CopyCode_CheckKey(this, event)" onmouseover="ChangeCopyCodeIcon(this)" onmouseout="ChangeCopyCodeIcon(this)" tabindex="0"><img class="copyCodeImage" name="ccImage" align="absmiddle" title="Copy image" src="../icons/copycode.gif" />Copy Code</span></th></tr><tr><td colspan="2"><pre>
23 aRemoteSession.AppContext = "VEN RPC";
24 </pre></td></tr></table></div>
25 The M code for a simple remote procedure call (BMX PATIENT DEMO) with two parameters to return a list of patients. See the following example. Note the inclusion of an error trap in the routine; BMXNet RPC routines must contain a functional error trap.
26 <div class="code"><table width="100%" cellspacing="0" cellpadding="0"><tr><th><span class="copyCode" onclick="CopyCode(this)" onkeypress="CopyCode_CheckKey(this, event)" onmouseover="ChangeCopyCodeIcon(this)" onmouseout="ChangeCopyCodeIcon(this)" tabindex="0"><img class="copyCodeImage" name="ccImage" align="absmiddle" title="Copy image" src="../icons/copycode.gif" />Copy Code</span></th></tr><tr><td colspan="2"><pre>
27 Figure 5 2 shows the M code for a simple remote procedure call (BMX PATIENT DEMO) with two parameters to return a list of patients. See the following example. Note the inclusion of an error trap in the routine; BMXNet RPC routines must contain a functional error trap.
28 PDEMO(BMXY,BMXPAT,BMXCOUNT) ;EP
29 ;This simple RPC demonstrates how to format data
30 ;for the BMXNet ADO.NET data provider
31 ;
32 ;Returns a maximum of BMXCOUNT records from the
33 ;VA PATIENT file whose names begin with BMXPAT
34 ;
35 N BMXI,BMXD,BMXC,BMXNODE,BMXDOB
36 ;
37 ; BMXY is passed in by reference. Set it to
38 ;the value of the variable in which we will return our data:
39 S BMXY="^TMP(BMX,"_$J_")"
40 ;
41 ;The first subnode of the data global contains the column header information
42 ;in the form "txxxxxCOLUMN1NAME^txxxxxCOLUMN2NAME"_$C(30)
43 ;where t is the column data type:
44 ; T for text
45 ; I for integer
46 ; N for floating point number
47 ; D for date/time.
48 ;xxxxx is the length of the column in characters.
49 ;
50 S BMXI=0,BMXC=0
51 S ^ TMP(BMX,$J,BMXI)="T00030NAME^T00010SEX^D00020DOB"_$C(30)
52 ;
53 ;You MUST set an error trap:
54 S X="PDERR^BMXRPC6",@^%ZOSF("TRAP")
55 ;
56 ;Strip CR, LF, TAB from BMXCOUNT parameter
57 S BMXCOUNT=$TR(BMXCOUNT,$C(13),"")
58 S BMXCOUNT=$TR(BMXCOUNT,$C(10),"")
59 S BMXCOUNT=$TR(BMXCOUNT,$C(9),"")
60 ;
61 ;Iterate through the global and set the data nodes:
62 S:BMXPAT="" BMXPAT="A"
63 S BMXPAT=$O(^DPT("B",BMXPAT),-1)
64 S BMXD=0
65 F S BMXPAT=$O(^DPT("B",BMXPAT)) Q:BMXPAT="" S BMXD=$O(^DPT("B",BMXPAT,0)) I +BMXD S BMXC=BMXC+1 Q:(BMXCOUNT)BMXC BMXCOUNT) D
66 . Q:'$D(^DPT(BMXD,0))
67 . S BMXI=BMXI+1
68 . S BMXNODE=^DPT(BMXD,0)
69 . ;Convert the DOB from FM date to external form
70 . S Y=$P(BMXNODE,U,3)
71 . I +Y X ^DD("DD")
72 . S BMXDOB=Y
73 . ;The data node fields are in the same order as the column header, i.e. NAME^SEX^DOB
74 . ;and terminated with a $C(30)
75 . S ^ TMP(BMX,$J,BMXI)=$P(BMXNODE,U)_U_$P(BMXNODE,U,2)_U_BMXDOB_$C(30)
76 ;
77 ;After all the data nodes have been set, set the final node to $C(31) to indicate
78 ;the end of the recordset
79 S BMXI=BMXI+1
80 S ^ TMP(BMX,$J,BMXI)=$C(31)
81 Q
82 ;
83 PDERR ;Error trap for PDEMO
84 ;
85 S ^ TMP(BMX,$J,BMXI+1)=$C(31)
86 Q
87 </pre></td></tr></table></div>
88 Register as an RPC
89 <p>
90 NAME: BMX DEMO TAG: PDEMO
91 ROUTINE: BMXRPC6 RETURN VALUE TYPE: GLOBAL ARRAY
92 </p>
93 Call using a RemoteSession
94 <div class="code"><table width="100%" cellspacing="0" cellpadding="0"><tr><th><span class="copyCode" onclick="CopyCode(this)" onkeypress="CopyCode_CheckKey(this, event)" onmouseover="ChangeCopyCodeIcon(this)" onmouseout="ChangeCopyCodeIcon(this)" tabindex="0"><img class="copyCodeImage" name="ccImage" align="absmiddle" title="Copy image" src="../icons/copycode.gif" />Copy Code</span></th></tr><tr><td colspan="2"><pre>
95 DataTable demoTable=aRemoteSession.TableFromCommand("BMX DEMO^S^10");
96 </pre></td></tr></table></div>
97 </div><h1 class="heading"><span onclick="ExpandCollapse(seeAlsoToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(seeAlsoToggle, event)" tabindex="0"><img id="seeAlsoToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />See Also</span></h1><div id="seeAlsoSection" class="section" name="collapseableSection" style=""><div class="seeAlsoStyle"><a href="15218990-392b-2525-75b3-834166ec97f7.htm">RemoteSession Interface</a></div><div class="seeAlsoStyle"><a href="534dc153-f26b-846c-6a67-7ccc52aaccc2.htm">TableFromCommand Overload</a></div><div class="seeAlsoStyle"><a href="58d4523c-9538-8ef8-a06c-5ae73a5250ff.htm">IndianHealthService.BMXNet Namespace</a></div></div><div id="footer"><div class="footerLine"><img width="100%" height="3px" src="../icons/footer.gif" title="Footer image" /></div>
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