Updating dataset from datagrid

20-Feb-2018 01:47 by 5 Comments

Updating dataset from datagrid

After the row is found, the update operation is performed on it.In Data Grid, every Cell is in the form of Text Block Framework Element type when it is not editable.

As you can see from the code, I called the Find method to find the row and called the Delete method of the Data Row.This will fire the ‘Row Edit Ending’ event and the update will be completed.In the preceding code, I created a data Grid View1_Row Header Mouse Click Event for updating and deleting the selected record.Note: The Tables member of Data Set represents all Data Table objects attached to a Data Set. Adding a Data Row to a Data Table Dim row1 As Data Row = ds. To test this source code create a Windows application, drop a Data Grid, and three buttons- Insert Command, Update Command, and Delete Command to the form.Listing 5-46 Creates a new Data Row, sets the data of Data Row members, and adds rows to the table using the Add method of Data Table. Listing 5-48 show the code on the Insert Command button-click event.So the ‘if’ statement in the above code, will prevent the application from crashing, since the WPF Data Grid generates a blank row when the data is bound to it.

When the delete button is clicked, the row will be deleted from the database.

So to read the edited cell value, you need to read the Cell contents using ‘Get Cell Content()’ method, by passing the Data Grid Row object to it.

Once the Framework Element is extracted, by type casting it to the ‘Text Box’ UI element, the value changed in the cell can be read.

When the user clicks on the Row Header of a row then the data present in the cell of the row is stored into the Text Boxes.

The Display Data() method fills in the data in the Data Grid View.

I was recently working on a requirement to perform Update and Delete operations on a WPF Data Grid control (similar to what developers do in a ASP. The WPF Data Grid is an excellent control to bind with collections and provides various events to work with. This code changes the columns for ‘Salary’ and ‘Dept No’ in edit mode.

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