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POExcel VBA - Create Treeview from recordset
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  1. POExcel VBA - Create Treeview from recordset
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    copied!<p>I have a SQL 05 Stored Procedure that brings back around 180 rows with the structure:</p> <p>ID | Name | ParentId.</p> <p>What I would like to do is create a Treeview based on the records returned. Below is a sample I adapted from elsewhere on the forum (<a href="https://stackoverflow.com/questions/1074004/build-a-tree-like-representation-of-data-in-excel">here</a>)</p> <p>I nearly have it doing what I want but not quite.</p> <p>This is the problem I have, The root is added ok. The next layer down is added ok. However, it does not know what the next ParentId should be. Should I just incremement a variable and try and find matches? I guess I should include that in the top method.</p> <p>Hopefully I am not far off and need a shove in the right direction,</p> <p>Many Thanks in advance Michael</p> <p>As a final thing, the BOF AND EOF checks are there in the loop as I seem to have had a lot of errors being thrown if I don't have it. </p> <pre><code>Private Sub MakeTree(ByVal rs As ADODB.Recordset) rs.MoveFirst Do Until rs.EOF If (IsNull(rs.Fields("ParentID"))) Then Call TVFunds.Nodes.Add(, , "Key" + CStr(rs.Fields("Id")), rs.Fields("Name")) Call MsgBox("Key" + CStr(rs.Fields("Id")) + " " + rs.Fields("Name"), vbInformation, "Added Root") Else DrawNode rs, rs.Fields("ParentID"), rs.Fields("ID") End If If rs.BOF &lt;&gt; True And rs.EOF &lt;&gt; True Then rs.MoveNext End If Loop End Sub Private Sub DrawNode(ByRef r As ADODB.Recordset, ByRef pId As Integer, ByRef Id As Integer) r.MoveFirst Do Until r.EOF If (r.Fields("ParentId") = pId And r.Fields("Id") = Id) Then Call TVFunds.Nodes.Add("Key" + CStr(r.Fields("ParentId")), tvwChild, "Key" + CStr(r.Fields("Id")), r.Fields("Name")) Call MsgBox("Key" + CStr(r.Fields("ParentId")) + " Key" + CStr(r.Fields("Id")) + " " + r.Fields("Name"), vbInformation, "Added") Id = Id + 1 DrawNode r, pId, Id End If If r.BOF &lt;&gt; True And r.EOF &lt;&gt; True Then r.MoveNext End If Loop End Sub </code></pre>
 

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