How To Do a MergeCells with FlexGrid or Hierarchical FlexGrid

MORE INFORMATION

This example uses the FlexGrid control. You can substitute the Hierarchical FlexGrid for the FlexGrid control in this sample.

When MergeRow or MergeColumn are True, the merged row or column may not merge correctly with a fixed column or row. The sample project in this article demonstrates this problem. Merging works best with non-fixed columns and rows.

This sample demonstrates merging with MergeCells set to FlexMergeFree. This allows merging on any row or column that has the MergeRow or MergeCol property set to True.

Steps to Create Sample Project

1. Create a new Standard EXE project. Form1 is created by default.
2. Click Components on the Projects menu to open the Components dialog box. On the Controls tab, select Microsoft FlexGrid Control and click OK.
3. Place a FlexGrid control and four CommandButtons on Form1.
4. Add the following code to code window for Form1:

         Option Explicit
         Dim iFixedRows As Integer
         Dim iFixedCols As Integer
   
         Private Sub Command1_Click()
           iFixedCols = iFixedCols + 1
           If iFixedCols > MSFlexGrid1.Cols - 1 Then
             iFixedCols = MSFlexGrid1.Cols - 1
             MsgBox "No more columns to fix"
           Else
             MSFlexGrid1.FixedCols = iFixedCols
           End If
         End Sub
   
         Private Sub Command2_Click()
           iFixedCols = iFixedCols - 1
           If iFixedCols < 0 Then
             iFixedCols = 0
             MsgBox "No more Columns to unfix"
           Else
             MSFlexGrid1.FixedCols = iFixedCols
           End If
         End Sub
   
         Private Sub Command3_Click()
           iFixedRows = iFixedRows + 1
           If iFixedRows > MSFlexGrid1.Rows - 1 Then
             iFixedRows = MSFlexGrid1.Rows - 1
             MsgBox "No more rows to fix"
           Else
             MSFlexGrid1.FixedRows = iFixedRows
           End If
         End Sub
   
         Private Sub Command4_Click()
           iFixedRows = iFixedRows - 1
           If iFixedRows< 0 Then
             iFixedRows = 0
             MsgBox "No more rows to unfix"
           Else
             MSFlexGrid1.FixedRows = iFixedRows
           End If
         End Sub
   
         Private Sub Form_Load()
           Command1.Caption = "Increment fixed Columns"
           Command2.Caption = "Decrease fixed Columns"
           Command3.Caption = "Increment fixed Rows"
           Command4.Caption = "Decrease fixed Rows"
   
           FillFlexGrid 'call sub that puts data into grid
   
           iFixedRows = MSFlexGrid1.FixedRows
           iFixedCols = MSFlexGrid1.FixedCols
         End Sub
   
         Private Sub FillFlexGrid()
           Dim sEntry As String
           With MSFlexGrid1
             .Cols = 5 'set the number of columns
             ' Set FixedRows to 0 so you can use AddItem. You can't
             ' use AddItem with a FixedRow. You have to use the Text property
             .FixedRows = 0
             .MergeCells = flexMergeFree 'Set the MergeCells property.
             .Font.Name = "fixedsys"
             .Font.Size = 8
             .Row = 0
             .Col = 0
             .ColWidth(0) = 1750
   
             ' Add some data to the grid using AddItem.
             sEntry = "Region" & vbTab & "Region" & vbTab & "Employee"
             .AddItem sEntry, 0
             sEntry = "Northwest" & vbTab & "Bats" & vbTab & "Bats"
             .AddItem sEntry, 1
             sEntry = "Northwest" & vbTab & "Whahoos"
             .AddItem sEntry, 2
             sEntry = "Northwest" & vbTab & "Whahoos"
             .AddItem sEntry, 3
             sEntry = "Northwest" & vbTab & "Sharks"
             .AddItem sEntry, 4
             sEntry = "Southeast" & vbTab & "Panthers"
             .AddItem sEntry, 5
             sEntry = "Southeast" & vbTab & "Panthers"
             .AddItem sEntry, 6
             sEntry = "Southeast" & vbTab & "Desktops"
             .AddItem sEntry, 7
             sEntry = "Southeast" & vbTab & "Desktops"
             .AddItem sEntry, 8
             sEntry = "Mid-Atlantic" & vbTab & "VSx7"
             .AddItem sEntry, 9
             sEntry = "Mid-Atlantic" & vbTab & "VSx7"
             .AddItem sEntry, 10
   
             ' Set the rows and columns you want to merge.
             .MergeCol(0) = True 'First Column in grid
             .MergeCol(1) = True 'Second Column in grid
   
             .MergeRow(0) = True 'First Row in Grid
             .MergeRow(1) = True 'Second Row in Grid
             ' Set the fixed columns and rows.
             .FixedCols = 1
             .FixedRows = 1
           End With
         End Sub
   
   					

5. Save and run the project. Use the CommandButtons to add or remove fixed columns or rows to see how they affect a merged column or row.