dotnet/Documentation/compatibility/page_loadcomplete-event-no-longer-causes-system_web_ui_webcontrols_entitydatasource-control-to-invoke-data-binding.md

Page.LoadComplete event no longer causes System.Web.UI.WebControls.EntityDataSource control to invoke data binding

Scope

Edge

Version Introduced

4.5

Source Analyzer Status

Available

Change Description

The xref:System.Web.UI.Page.LoadComplete event no longer causes the xref:System.Web.UI.WebControls.EntityDataSource?displayProperty=name control to invoke data binding for changes to create/update/delete parameters. This change eliminates an extraneous trip to the database, prevents the values of controls from being reset, and produces behavior that is consistent with other data controls, such as xref:System.Web.UI.WebControls.SqlDataSource?displayProperty=name and xref:System.Web.UI.WebControls.ObjectDataSource?displayProperty=name. This change produces different behavior in the unlikely event that applications rely on invoking data binding in the xref:System.Web.UI.Page.LoadComplete event.

• Quirked
• Build-time break

Recommended Action

If there is a need for databinding, manually invoke databind in an event that is earlier in the post-back.

Affected APIs

• Investigate applicable APIs

Category

ASP.NET