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How to get DataKey value in GridView on RowCommand?
5 Answers. I usually pass the RowIndex via CommandArgument and use it to retrieve the DataKey value I want. You can use this code while doing an iteration with foreach or for any GridView event like OnRowDataBound . Here you can input multiple values for DataKeyNames by separating with comma , .
How to get DataKey from GridView row?
Using DataKeyNames and DataKeys is fairly simple, you just need to set the name of the Column in DataKeyNames property as shown below. Here CustomerId is the name of the Column. And then in code access it using the RowIndex of the GridView Row to get the value of the Column for that particular Row. int id = Convert.
How to find DataKey in GridView RowDataBound?
Since you already know the name of the field that is the DataKey, you just need to access the DataItem during RowDataBound. Like this: void GridView1_RowDataBound (Object sender, GridViewRowEventArgs e) { // Check for that the row is a data row & not header or footer if(e. Row.
How do I get multiple DataKeyNames in GridView?
‘Determine the RowIndex of the Row whose Button was clicked.
- Dim rowIndex As Integer = TryCast(TryCast(sender, Button).NamingContainer, GridViewRow).RowIndex.
- Dim id As Integer = Convert.ToInt32(GridView1.DataKeys(rowIndex).Values(0))
- Dim group As String = GridView1.DataKeys(rowIndex).Values(1).ToString()
What is DataKeyNames GridView?
When the DataKeyNames property is set, the GridView control automatically populates its DataKeys collection with the values from the specified field or fields, which provides a convenient way to access the primary keys of each row. Note. The GridView control stores these key field values in the control state.
How do you use DataKeyNames?
Use the DataKeyNames property to specify the field or fields that represent the primary key of the data source. You should only set this property to the field or fields that are required to uniquely identify each row; for example, the ID column if an integer value uniquely identifies each row.
Which property get primary key field value in GridView control?
DataKeyNames property
When the DataKeyNames property is set, the GridView control automatically populates its DataKeys collection with the values from the specified field or fields, which provides a convenient way to access the primary keys of each row. The GridView control stores these key field values in the control state.