Filter on Gridboundcolumns

[Paul Mulder]

I want to filter a databoundgridcolumn (dropdown type) based on another databoundgridcolumn (also dropdown type).

In other words, I select first column from dropdown (that is linked to a bindingsource for values), which in turn limits the choices on the second column dropdown (also linked to a different bindingsource) based on the first selection.

For ease of understanding, the first column could be country and the second column could be state. There are no relations set up between these datasources, but should it be required, I could probably look into that.

 

[Ragamathulla B]

Hi Paul,

Thank you for your interest in syncfusion products.

You can bind the datasource dynamically based on the selected value inside ‘CurrentCellShowedDropDown’ event. The following code explains the same.

void gridDataBoundGrid1_CurrentCellShowedDropDown(object sender, EventArgs e)
{
GridCurrentCell cc = this.gridDataBoundGrid1.CurrentCell;
if (cc.ColIndex == 2)
//column that need to be filtered...
{
GridComboBoxCellRenderer cr = (GridComboBoxCellRenderer)cc.Renderer;
if (cr != null)
{
string text = gridDataBoundGrid1[cc.RowIndex, 1].Text;
if (text == "One")
{
((GridComboBoxListBoxPart)cr.ListBoxPart).DataSource = GetTable1();
((GridComboBoxListBoxPart)cr.ListBoxPart).DisplayMember = "Col2";
((GridComboBoxListBoxPart)cr.ListBoxPart).ValueMember = "Col1";
}
else
{
((GridComboBoxListBoxPart)cr.ListBoxPart).DataSource = GetTable();
((GridComboBoxListBoxPart)cr.ListBoxPart).DisplayMember = "Col1";
((GridComboBoxListBoxPart)cr.ListBoxPart).ValueMember = "Col2";
}
}

}
}

Please refer to the following sample which illustrates the same.

http://www.syncfusion.com/downloads/Support/DirectTrac/87557/ComboBoxGDBG-2065197015.zip

Please let me know if you have any further concerns.

Regards,
Ragamathullah B.

[Paul Mulder]

Thank you. Solved it

[Ragamathulla B]

Hi Paul,

Thanks for the update.

Please let me know if you have any further concerns.

Regards,

Ragamathullah B.