Load on demand with two comboboxes in grid

[Silvio Silva Junior]

Hello guys.

I have a doubt about combobox in radgrid.

My grid have two comboboxes (in two GridTemplateColumns) when in editmode: one for State and other for city. In the State combobox SelectedIndexChanged event, I want to populate my City combobox, but I don't know how to get the city combobox in the SelectedIndexChanged event of State combobox. I have tryed some like this:

RadComboBox ddlCity = (RadComboBox)RadGrid1.FindControl("ddlCity "); but it doesn't work.

How can I do?

Thanks in advance.

Regards.

[Princy]

Hello Silvio,

You could hook OnSelectedIndexChanged event to the RadComboBox and get reference to the second combobox (by accessing the container and then FindControl) and populate the combo in that event. Check out the following code:

C#:

protected void RadComboBox1_OnSelectedIndexChanged(object sender, EventArgs e)
{
    RadComboBox radCombo1 = (RadComboBox)sender;
    GridEditFormItem editItem = (GridEditFormItem) radCombo1.NamingContainer;
    RadComboBox radCombo2 = (RadComboBox)editItem.FindControl("radCombo2");
    radCombo2.ClearSelection();
    radCombo2.DataSource = BindSecondCombo(radCombo1.SelectedValue); // Retrieve the items corresponding to selectedvalue of first combo (State)
    radCombo2.DataTextField = "City";
    radCombo2.DataValueField = "Id";
    radCombo2.Items.Insert(0, new RadComboBoxItem("Select City...", "0"));
}

Thanks,
Princy.

[Silvio Silva Junior]

Very thanks Princy.

It work's fine!!!

Thank you bro.

[Rick]

Thanks for the fast reply. That looks like it will work.

Thanks Princy.