How to ResizeToFit a cell with multi-line text in WinForms GridGroupingControl?
Display multi-line text
By default, the WinForms Grid Grouping Control does not have direct support to ReSizeToFit the multi-line text. It can be displayed only by scrolling.
Solution:
To ReSizeToFit the multi-line text, a workaround solution in the QueryRowHeight event is available. In this event, the cell’s height has been calculated as per the current cell value along with the number of lines.
C#
//Event hooking in constructor. this.gridGroupingControl1.TableModel.QueryRowHeight += new GridRowColSizeEventHandler(TableModel_QueryRowHeight); //This event is triggered when the row height is changed. void TableModel_QueryRowHeight(object sender, GridRowColSizeEventArgs e) { if (e.Index > 0) { IGraphicsProvider graphicsProvider = this.gridGroupingControl1.TableModel.GetGraphicsProvider(); Graphics g = graphicsProvider.Graphics; GridStyleInfo style = this.gridGroupingControl1.TableModel[e.Index, 2]; GridCellModelBase model = style.CellModel; e.Size = model.CalculatePreferredCellSize(g, e.Index, 2, style, GridQueryBounds.Height).Height; e.Handled = true; } }
VB
'Event hooking. AddHandler gridGroupingControl1.TableModel.QueryRowHeight, AddressOf TableModel_QueryRowHeight 'This event gets triggered when the row height is changed. Private Sub TableModel_QueryRowHeight(ByVal sender As Object, ByVal e As GridRowColSizeEventArgs) If e.Index > 0 Then Dim graphicsProvider As IGraphicsProvider = Me.gridGroupingControl1.TableModel.GetGraphicsProvider() Dim g As Graphics = graphicsProvider.Graphics Dim style As GridStyleInfo = Me.gridGroupingControl1.TableModel(e.Index, 2) Dim model As GridCellModelBase = style.CellModel e.Size = model.CalculatePreferredCellSize(g, e.Index, 2, style, GridQueryBounds.Height).Height e.Handled = True End If End Sub
Since, the height has been calculated in QueryRowHeight event that triggers frequently, the row height cannot be resized.
ScreenShot:
Figure 1: Multi-line text ReSizedToFit
Samples:
Conclusion
I hope you enjoyed learning about how to ResizeToFit a cell with multi-line text in WinForms GridGroupingControl.
You can refer to our WinForms Grid Grouping Control’s feature tour page to know about its other groundbreaking feature representations. You can also explore our WinForms Grid Grouping Control documentation to understand how to present and manipulate data.
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