How to disable the contextmenu for specific row in WinForms GridControl?
Context menu
To display a context menu based on the cell value in WinForms GridGrouping, use the TableControl.MouseDown event. In this event, a specific cell value can be retrieved from the current record using the current cell style and setting the ContextMenu based on the cell value.
C#
//Event Subscription this.gridGroupingControl1.TableControl.MouseDown += TableControl_MouseDown; //Event Customization private void TableControl_MouseDown(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Right) { int rowIndex, colIndex; this.gridGroupingControl1.TableControl.PointToRowCol(e.Location, out rowIndex, out colIndex); //To get the current cell style. GridTableCellStyleInfo style = this.gridGroupingControl1.TableControl.GetTableViewStyleInfo(rowIndex, colIndex); //To get the record. Record record = style.TableCellIdentity.DisplayElement.GetRecord(); if(record != null) { bool value; string boolValue = record.GetValue("Boolean").ToString(); if (bool.TryParse(boolValue, out value) && value) this.gridGroupingControl1.ContextMenu = null; else if (this.gridGroupingControl1.ContextMenu == null) this.gridGroupingControl1.ContextMenu = menu; } else { //To avoid the contextmenu for header row. this.gridGroupingControl1.ContextMenu = null; } } }
VB
'Event Subscription AddHandler Me.gridGroupingControl1.TableControl.MouseDown, AddressOf TableControl_MouseDown 'Event Customization Private Sub TableControl_MouseDown(ByVal sender As Object, ByVal e As MouseEventArgs) If e.Button = MouseButtons.Right Then Dim rowIndex, colIndex As Integer Me.gridGroupingControl1.TableControl.PointToRowCol(e.Location, rowIndex, colIndex) 'To get the current cell style. Dim style As GridTableCellStyleInfo = Me.gridGroupingControl1.TableControl.GetTableViewStyleInfo(rowIndex, colIndex) 'To get the record. Dim record As Record = style.TableCellIdentity.DisplayElement.GetRecord() If record IsNot Nothing Then Dim value As Boolean Dim boolValue As String = record.GetValue("Boolean").ToString() If Boolean.TryParse(boolValue, value) AndAlso value Then Me.gridGroupingControl1.ContextMenu = Nothing ElseIf Me.gridGroupingControl1.ContextMenu Is Nothing Then Me.gridGroupingControl1.ContextMenu = menu_Renamed End If Else 'To avoid the contextmenu for header row. Me.gridGroupingControl1.ContextMenu = Nothing End If End If End Sub
Screenshot
Samples:
C#: Disable contextmenu on Booleanvalue_CS
VB: Disable contextmenu on Booleanvalue_VB
Conclusion
I hope you enjoyed learning about how to disable the contextmenu for specific row in WinForms GridControl.
You can refer to our WinForms GridControl feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our WinForms GridControl example to understand how to create and manipulate data.
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