Change datasource of a second LookUp based on a first LookUp's value for in-place form

Question

I use a XtraGrid which it's editing mode is EditFormInplace. I have populated datasources of all the LookUps when page is loaded. Now in runtime when LookUp1 selects an item, I need to change the datasource of LookUp2.

How can I achieve this? "Change datasource of LookUp2 based on a LookUp1's value for in-place form."

Answer 1

I suggest you use the built-in functionality for cascading lookups:

lookUpEdit2.CascadingOwner = lookUpEdit1;

I use a XtraGrid which it's editing mode is EditFormInplace.

Every time the Edit Form is displayed, the GridView.EditFormPrepared event fires. Thus, you can use this event to access controls within the Edit Form:

void gridView1_EditFormPrepared(object sender, DevExpress.XtraGrid.Views.Grid.EditFormPreparedEventArgs e) {
    var lookupEdit1  = e.BindableControls[colLookup1] as LookupEdit;
    var lookupEdit2  = e.BindableControls[colLookup2] as LookupEdit;
    // ... customize editors
}