How to add unbound CheckBox column at runtime in WinForms GridGroupingControl?

3 mins read

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,

this.gridGroupingControl1.TableDescriptor.UnboundFields.Add("print");  this.gridGroupingControl1.TableDescriptor.Columns["print"].Appearance.AnyRecordFieldCel.CellType = "CheckBox";

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.

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];
    }
}

AddHandler Me.gridGroupingControl1.TableDescriptor.QueryValue, 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 = CType(checkboxvalues(e.Record.Id), Boolean)
    End If
End Sub

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());
    }
}

AddHandler Me.gridGroupingControl1.TableDescriptor.SaveValue, 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 screenshot below illustrates the addition of an unbound checkbox column at runtime.

Shows unbound checkbox column

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 an unbound checkbox column at runtime in the WinForms GridGroupingControl.

You can refer to our WinForms GridGroupingControl’s feature tour page to know about its other groundbreaking feature representations. You can also explore our WinForms GridGroupingControl documentation to understand how to present and manipulate data.

For current customers, you can check out our WinForms components from the License and Downloads page. If you are new to Syncfusion, you can try our 30-day free trial to check out our WinForms GridGroupingControl and other WinForms components.

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How to add unbound CheckBox column at runtime in WinForms GridGroupingControl?

Unbound column

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