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How to add unbound CheckBox column at run time in WinForms GridGroupingControl?

2 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,

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 for displaying and updating 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

 

Screenshot

Shows unbound checkbox column

 

Samples:

C# : CheckBox column at run time

VB : CheckBox column at run time

Reference link: https://help.syncfusion.com/windowsforms/classic/gridgroupingcontrol/managing-records-and-columns#unbound-columns


Conclusion

I hope you enjoyed learning about how to add unbound checkbox column at runtime in WinForms 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.

For current customers, you can check out our 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 other controls.

If you have any queries or require clarifications, please let us know in the comments section below. You can also contact us through our support forumsDirect-Trac, or feedback portal. We are always happy to assist you!

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