Update requires a valid UpdateCommand when passed DataRow collection
Issue Description
While connecting SQL Server and performing update operation Database gives below error,
System.InvalidOperationException: ‘Update requires a valid UpdateCommand when passed DataRow collection with modified rows.’
Resolution
The issue is mostly found while calling generic Update command( Update commands can be used for Insert, Delete, or Select(Read) depending on the SQLCommand associated.
As the error suggest, It’s important Update method is called by registring the a valid UpdateCommand.
Example:
dataAdpater.UpdateCommand = new SqlCommand(
"UPDATE employee SET LastName = @LastName " +
"WHERE EmployeeID = @EmployeeID", _con);
In the above command, we are defining the UpdateCommand with Update script for Insert or Update or Delete operation.
Please visit below article for reference implementation and guidelines,
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