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Cancel to true in certain circumstances, but they aren't being hit.I use an object Data Store to insert the records from a form.Parameters can be passed to the business object method by reference or by value.If you use an Object Data Source Method Event Handler object to handle the Selecting, Updating, Inserting, or Deleting events, you can access and manipulate these parameters using the property of the Object Data Source control is set, you can modify only the data object properties for the items in this dictionary; you cannot add or remove parameters. Parameters that are passed by reference are returned in the The following code example demonstrates how to use a Drop Down List control, Text Box controls, and several Object Data Source controls to update data.The first code example demonstrates how to use a Drop Down List control, Text Box controls, and several Object Data Source objects to update data.The second code example shows the class that is used in the first code example.The method delegates to the Update method of the Object Data Source View that is associated with the Object Data Source control.
You can handle the Updated event to examine any return values, output parameters, and exceptions, and to perform any post-processing.
If the method is static (Shared in Visual Basic), the business object is never created and you cannot handle the Object Created, Object Creating, and Object Disposing events. If a parameter in the Update Parameters element is found with the same name as a parameter that is already in the collection, the existing parameter is modified to match the parameter that is specified in the Update Parameters element.
Typically, this is used to modify the type of the data in the parameter.
Because the This example has a text box that accepts user input, which is a potential security threat. NET Web pages validate that user input does not include script or HTML elements.
For more information, see Script Exploits Overview.
The following code example demonstrates how to use a Drop Down List control, Text Box controls, and several Object Data Source controls to update data.