Linqdatasource updating

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LINQ acts as a bridge between Objects and Data, classic data driven applications expected the programmer to be proficient in both the programming language (C#, Visual Basic etc) and the data source native language (SQL, XQuery etc) to extract the data.shows how we can add data validation logic to the update routine.A validation exception can occur if a value does not match the type of the property.For example, trying to update an integer property by using non-numeric characters causes a validation exception.You would able to Edit, Delete and View the data in Grid View without writing a single line of code.So open properties of Grid View and enable the options by cheking the chekboxes.

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ASPx Data Inserting Event Args e) everithing works fine...ASPx Data Inserting Event Args e) In this scenario, if we want to edit 2 times same row, it fails, and some problems at insert or delete: Row not found or changed If we comment the Guid stuff protected void ASPx Grid View1_Row Inserting(object sender, Dev Express.Finally I make a full documentation of this situation, see the attachment.In the event handler, check whether the Exception property of the event argument class contains a value other than null.If the Exception property is not null, one or more validation exceptions were thrown and you can retrieve each validation exception in the property.

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