Handle QueryColWidth eventTo dynamically change the column widths, you have to handle the Grid's QueryColWidth event. The following example shows how you can have the right-most or the left-most column grow to fill the Grid's client area as the Grid size changes. C# //Defines the columns to fill the space in the table.
void TableModel_QueryColWidth(object sender, GridRowColSizeEventArgs e)
{
switch (_colSizeBehavior)
{
case colSizeBehavior.RightColumn:
if(e.Index == this.gridGroupingControl1.TableDescriptor.VisibleColumns.Count)
{
e.Size = this.gridGroupingControl1.ClientSize.Width - this.gridGroupingControl1.TableModel.ColWidths.GetTotal(0,
this.gridGroupingControl1.TableDescriptor.VisibleColumns.Count - 1);
e.Handled = true;
}
break;
case colSizeBehavior.LeftColumn:
if(e.Index == this.gridGroupingControl1.TableModel.Cols.FrozenCount + 1)
{
int leftPiece = this.gridGroupingControl1.TableModel.ColWidths.GetTotal(0, this.gridGroupingControl1.TableModel.Cols.FrozenCount);
int rightPiece = this.gridGroupingControl1.TableModel.ColWidths.GetTotal(this.gridGroupingControl1.TableModel.Cols.FrozenCount + 2, this.gridGroupingControl1.TableModel.ColCount);
e.Size = this.gridGroupingControl1.ClientSize.Width - leftPiece - rightPiece;
e.Handled = true;
}
break;
default:
break;
}
}
VB 'Defines the columns to fill the space in the table. Private Sub TableModel_QueryColWidth(ByVal sender As Object, ByVal e As GridRowColSizeEventArgs) Select Case _colSizeBehavior Case colSizeBehavior.RightColumn If e.Index = Me.gridGroupingControl1.TableDescriptor.VisibleColumns.Count Then e.Size = Me.gridGroupingControl1.ClientSize.Width - Me.gridGroupingControl1.TableModel.ColWidths.GetTotal(0, Me.gridGroupingControl1.TableDescriptor.VisibleColumns.Count - 1) e.Handled = True End If Case colSizeBehavior.LeftColumn If e.Index = Me.gridGroupingControl1.TableModel.Cols.FrozenCount + 1 Then Dim leftPiece As Integer = Me.gridGroupingControl1.TableModel.ColWidths.GetTotal(0, Me.gridGroupingControl1.TableModel.Cols.FrozenCount) Dim rightPiece As Integer = Me.gridGroupingControl1.TableModel.ColWidths.GetTotal(Me.gridGroupingControl1.TableModel.Cols.FrozenCount + 2, Me.gridGroupingControl1.TableModel.ColCount) e.Size = Me.gridGroupingControl1.ClientSize.Width - leftPiece - rightPiece e.Handled = True End If Case Else End Select End Sub After applying the properties, the Grid looks like the following screenshot.
Figure 1: The left column to fill the available space Samples: |
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