Gets or sets the client identifier (ID) used to find the HTML element for the URL value returned from the Asset Picker dialog box.
Assembly: Microsoft.SharePoint.Publishing (in Microsoft.SharePoint.Publishing.dll)
If this property is set, the AssetUrl property does not contain the value selected in the dialog box. After a value is returned in the dialog box, the application uses the AssetUrlClientID property to retrieve an HTML element with a specified ID from the HTML document.
If an HTML element with the specified ID is found, its "value" property is set to the returned URL from the Asset Picker dialog box.