How To Perform a Callback on an ASPxGridLookup Control

The Situation: You have a DevExpress ASPxGridLookup control on your page and need to update its contents when some event occurs (such as a parent drop-down value changes). The problem is that the ASPxGridLookup control does not implement an OnCallback event. A Solution: First of all, this is not my solution. I found it on … Continue reading How To Perform a Callback on an ASPxGridLookup Control

How To Make a Column in an ASPxGridView ReadOnly for Editing but Enabled when Inserting a New Record

The Situation: You have a DevExpress ASPxGridView on your page with a column designated as "ReadOnly=true". This works great when you are editing an existing record -- it won't allow you to change that field, but when you try to insert a NEW record, you can't enter anything in the field. Note: I don't know … Continue reading How To Make a Column in an ASPxGridView ReadOnly for Editing but Enabled when Inserting a New Record

How To Edit a Record in an ASPxGridView Bound to EntitySpaces’ esDataSource that Uses a Join

The Situation: You get an error when you try to save edits to a record in a DevExpress ASPxGridView. The grid view is bound to an EntitySpaces esDataSource, which is populated using EntitySpaces dynamic query functionality. The ES dynamic query syntax allows you to use joins between entities like this (actual code from one of … Continue reading How To Edit a Record in an ASPxGridView Bound to EntitySpaces’ esDataSource that Uses a Join