How to add unbound CheckBox column at runtime in WinForms GridGroupingControl?
Unbound column
To add
an Unbound column in the WinForms
GridGroupingControl, TableDescriptor. UnboundFields collection
can be used and the CheckBox cell type can be assigned in the
following way,
C#
this.gridGroupingControl1.TableDescriptor.UnboundFields.Add("print"); this.gridGroupingControl1.TableDescriptor.Columns["print"].Appearance.AnyRecordFieldCel.CellType = "CheckBox"; VB
Me.gridGroupingControl1.TableDescriptor.UnboundFields.Add("print")
Me.gridGroupingControl1.TableDescriptor.Columns("print").Appearance.AnyRecordFieldCel.CellType = "CheckBox"The values of that Unbound field can be maintained through QueryValue and SaveValue events. An internal collection will be handled to display and update the values.
C#
this.gridGroupingControl1.TableDescriptor.QueryValue += new FieldValueEventHandler(unboundField_QueryValue);
private void unboundField_QueryValue(object sender, FieldValueEventArgs e)
{
if (e.Field.Name == "print" && checkboxvalues.Contains(e.Record.Id))
{
e.Value = (bool)checkboxvalues[e.Record.Id];
}
} VB
Private Me.gridGroupingControl1.TableDescriptor.QueryValue += New FieldValueEventHandler(AddressOf unboundField_QueryValue)
Private Sub unboundField_QueryValue(ByVal sender As Object, ByVal e As FieldValueEventArgs)
If e.Field.Name = "print" AndAlso checkboxvalues.Contains(e.Record.Id) Then
e.Value = CBool(checkboxvalues(e.Record.Id))
End If
End Sub C#
this.gridGroupingControl1.TableDescriptor.SaveValue += new FieldValueEventHandler(unboundField_SaveValue);
private void unboundField_SaveValue(object sender, FieldValueEventArgs e)
{
if (e.Field.Name == "print" && checkboxvalues.Contains(e.Record.Id))
{
checkboxvalues[e.Record.Id] = bool.Parse(e.Value.ToString());
}
}VB
Private Me.gridGroupingControl1.TableDescriptor.SaveValue += New FieldValueEventHandler(AddressOf unboundField_SaveValue)
Private Sub unboundField_SaveValue(ByVal sender As Object, ByVal e As FieldValueEventArgs)
If e.Field.Name = "print" AndAlso checkboxvalues.Contains(e.Record.Id) Then
checkboxvalues(e.Record.Id) = Boolean.Parse(e.Value.ToString())
End If
End Sub The below Screenshot illustrates the addition of an unbound checkbox column at runtime.
Samples:
C# : CheckBox column at runtime
VB : CheckBox column at runtime
Reference Link: Unbound Columns
Conclusion
I hope you
enjoyed learning about how to add unbound checkbox column at runtime in GridGroupingControl.
You can refer to our WinForms GridGroupingControl feature tour page to know about its other groundbreaking feature representations. You can also explore our WinForms GridGroupingControl documentation to understand how to create and manipulate data.
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