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    To cancel the update operation, set the collections, if necessary, before the values are passed to the data source.A common way to use these collections is to HTML-encode the values supplied by the user before they are stored in the data source. This can be beneficial to other community members reading the thread. Extract Values From Cell(values, field1Cell, Data Control Row State. It will be in a Dictionary, but it will be the only value in that. Please remember to click “Mark as Answer” on the post that helps you. Add("lang_String", update String) item Data Source. When I changed the Cell index in line one of the code above I did return an existing value from the Gridview. Please review the stack trace for more information about the error and where it originated in the code. Invalid Cast Exception: Unable to cast object of type 'System. Also, I do not need to extract any other values than just this one cell, I have everything else already assigned in other variables. Containing Field, Bound Field) Dim values As New Ordered Dictionary() field1Field. When all you've got is a Hammer, Every Problem looks like a Nail. To use Find Control you would have to build a Template Field. Text = "Database was not updated for record " & row. Text ", string text " update String "." End If Catch ex As Exception Throw ex End Try Dim field1Cell As Data Control Field Cell = Direct Cast(row. You will then get a Dictionary with all values, with the field names as keys. In the Row Updating handler, you will need to extract the values like I do in my Updating handler. Template Fields are not Bound Fields, and they don't have Data Field on them. Please remember to click “Mark as Answer” on the post that helps you. This can be beneficial to other community members reading the thread. You could even loop over the Cells and use Extract Values on each into the same Dictionary. Please remember to click “Mark as Answer” on the post that helps you. Source Error: The Data Source assignment is just for the sake of the demo. The Data Control Field for the Cell knows the structure of its Cells, and will use that knowledge when you call Extract Values From Cells. So if you extract values from the 7th column, you should be fine.

    Suppose we’ve to work on Customer table having Category ID as foreign key.Adapt to match the actual type.) Also note that values for Read Only fields will not make it into these Dictionaries.Unless they are Key fields, there isn't really a way to get to these. Data Bind in Row Updating (or at least before the Update is actualy processed) is better not done. Please remember to click “Mark as Answer” on the post that helps you.This enables you to provide an event-handling method that performs a custom routine, such as canceling the update operation, whenever this event occurs.A Grid View Update Event Args object is passed to the event-handling method, which enables you to determine the index of the current row and to indicate that the update operation should be canceled.

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