What happens between DataBinding and DataBound?-CodePudding

In my WebForms application I have a drop down list (DDL) with methods Method_DataBinding and Method_DataBound. When I open form with this DDL and it have some wrong data, it gives me an exception. I want to catch it but I can't understand, where to do it.

On the last line of method Method_DataBinding there is no error and it don't reach Method_DataBound, so error is somewhere between this methods. I can't understand where

<asp:DropDownList
    ID="SomeId"
    runat="server"
    DataSourceId="SomeDsId"
    OnDataBinding="Method_DataBinding"
    OnDataBound="Method_OnDataBound" />

protected void Method_DataBinding()
{
}

// Here betwen this two methods I have error, can't catch it

protected void Method_DataBound()
{
}

CodePudding user response：

If you use a SqlDataSource(EntityDataSource similar) you can use the Updated event:

protected void SomeDsId_OnUpdated(object sender, SqlDataSourceStatusEventArgs e)
{
   if (e.Exception != null) 
   {
         // handle here
   }
}