Formview itemupdating cancel
The Data Value Field and Data Text Field's are assigned to Customer ID and Company Name respectively, and lookup values will come from the Customers table.The Eval method in the script block implies that the Selected Value is read from the outer data source's Customer ID field.Here are the steps: The last steps require that you bind the Data Text Field and Data Value Field properties to the Customer IDData Source and the Selected Value to the original source's Customer ID.The Drop Down List should be configured to look like the ASP. The Data Source ID for the Drop Down List points at Customer IDData Source.For me, I have found that enterprise applications and applications of even modest complexity require a lot of business rules and control, and managing everything from scratch supports that from the get go.I do use Bind, Eval, and User Controls heavily though.Compare All Values`, the original values of the record are compared against the values in the data source before an update operation is performed.If a record has been modified by another user concurrently, the record is not updated.
The difference is that Bind is a two-way bind (read and write) and Eval is a one way bind (read-only) from the Data Source. Item Updating Dim control As Drop Down List = Form View1. If you use Eval then remember that the Drop Down List is in a template of the Form View, so you have to get the actual Drop Down List by calling Find Control and setting the updated value to the e. The running form is shown in Figure 3, and the ASP.
To demonstrate data binding for a Drop Down List in a Form View switch the Form View to the Edit Item Template.