FIX: FlexGrid SelChange Occurs for Every Selected Row or Column

• Microsoft Visual Basic Learning, Professional, and Enterprise Editions for Windows, version 6.0

SYMPTOMS

The SelChange event of the Microsoft FlexGrid control fires once for each row and/or column added to the selection.

CAUSE

Behavior of the FlexGrid control was modified to trigger the SelChange event every time a row or column was added to the selection.

In Visual Basic 5.0, the SelChange event fired only once when the selection was extended, regardless of the number of rows or columns in the selection.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article.

This bug was corrected in Visual Studio 6.0 Service Pack 3.

For more information about Visual Studio 6.0 Service Packs, please see the following articles in the Microsoft Knowledge Base:


Q194022 INFO: Visual Studio 6.0 Service Packs, What, Where, Why

Q194295 HOWTO: Tell That Visual Studio 6.0 Service Packs Are Installed

MORE INFORMATION

Steps to Reproduce Behavior

1. Create a new Standard EXE project in Visual Basic 6.0. Form1 is created by default.



2. Select Components from the Project menu. Select the Microsoft FlexGrid Control 6.0. Click OK to close the dialog, and add the control to the toolbox.



3. Place an instance of the FlexGrid control on Form1.



4. Add the following code to Form1:




      Private Sub Form_Load()
         MSFlexGrid1.Cols = 10
         MSFlexGrid1.Rows = 10
      End Sub

      Private Sub MSFlexGrid1_SelChange()
         Debug.Print "SelChange"
      End Sub 

5. Press the F5 key to run the project. Click in one of the FlexGrid cells. Hold the left-mouse button down and extend the selection across several other rows and columns.



6. Look in the Immediate window: "SelChange" appears once for each column and row added to the selection.NOTE: If this test is repeated in Visual Basic 5.0 with the Visual Basic 5.0 version of the MSFlexGrid control, the SelChange event would occur only once at the end of the selection process and regardless of the number of columns and rows added to the selection. The Hierarchical FlexGrid Control 6.0 (MSHFlexGrid) behaves the same as described above for the Visual Basic 5.0 version of the regular FlexGrid control.

REFERENCES

MSDN Library, Visual Basic 6.0 documentation

Additional query words: msflexgrid

Keywords : kbusage kbservicepack kbCtrl kbVBp kbVBp500 kbVBp600bug kbGrpVB kbVS600sp3fix
Version : WINDOWS:6.0
Platform : WINDOWS
Issue type : kbbug