Update selectcommand

The number of rows successfully updated from the DataSet. The update is performed on a by-row basis. For every inserted, modified, and deleted row, the Update method determines the type of change that has been performed on it Insert, Update or Delete. Depending on the type of change, the Insert , Update, or Delete command template executes to propagate the modified row to the data source. It should be noted that these statements are not performed as a batch process; each row is updated individually.

NET Framework data provider. This generation logic requires key column information to be present in the DataSet. For more information see Generating Commands with CommandBuilders. The Update method retrieves rows from the table listed in the first mapping before performing an update.

The Update then refreshes the row using the value of the UpdatedRowSource property. Any additional rows returned are ignored. After any data is loaded back into the DataSet , the OnRowUpdated event is raised, allowing the user to inspect the reconciled DataSet row and any output parameters returned by the command.

After a row updates successfully, the changes to that row are accepted. When using Update , the order of execution is as follows:. The values in the DataRow are moved to the parameter values. During Update , if this property is not set and primary key information is present in the DataSet , the UpdateCommand can be generated automatically if you set the SelectCommand property and use the SqlCommandBuilder.

Then, any additional commands that you do not set are generated by the SqlCommandBuilder. This generation logic requires key column information to be present in the DataSet. For more information, see Generating Commands with CommandBuilders. The UpdateCommand maintains a reference to the previously created SqlCommand object. If execution of this command returns rows, the updated rows may be merged with the DataSet depending on how you set the UpdatedRowSource property of the SqlCommand object.

For every column that you propagate to the data source on Update , a parameter should be added to InsertCommand , UpdateCommand , or DeleteCommand. Find centralized, trusted content and collaborate around the technologies you use most.

Connect and share knowledge within a single location that is structured and easy to search. This works fine and the gridView populates with the full table data. I've tried. I think the problem is PostBack and page load. You should put refresh code into this code:. I think that's happen because of post back. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

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