DataRow.Item Property (Int32)

 

Gets or sets the data stored in the column specified by index.

Namespace:   System.Data
Assembly:  System.Data (in System.Data.dll)

Public Property Item (
	columnIndex As Integer
) As Object

Parameters

columnIndex
Type: System.Int32

The zero-based index of the column.

Property Value

Type: System.Object

An Object that contains the data.

Exception Condition
DeletedRowInaccessibleException

Occurs when you try to set a value on a deleted row.

IndexOutOfRangeException

The columnIndex argument is out of range.

InvalidCastException

Occurs when you set the value and the new value's Type does not match DataType.

When you set the property, an exception is generated if an exception occurs in the ColumnChanging event.

If this is an edit, see EndEdit for the exceptions that can be generated.

The following examples demonstrate the use of the Item property to get and set the value of a specific column index. The first example gets the value of the first column in any row that a user clicks in a DataGrid control.

Private Sub DataGrid1_Click _
    (ByVal sender As System.Object, ByVal e As System.EventArgs)

    ' Get the DataTable the grid is bound to.
    Dim thisGrid As DataGrid = CType(sender, DataGrid)
    Dim table As DataTable = CType(thisGrid.DataSource, DataTable)
    Dim currentRow As DataRow = _
        table.Rows(thisGrid.CurrentCell.RowNumber)

    ' Get the value of the column 1 in the DataTable.
    Console.WriteLine(currentRow(1))
    ' You can also use the name of the column:
    ' Console.WriteLine(currentRow("FirstName"))
    End Sub

    Private Sub SetDataRowValue( _
        ByVal grid As DataGrid, ByVal newValue As Object)

    ' Set the value of the last column in the last row of a DataGrid.
    Dim table As DataTable
    table = CType(grid.DataSource, DataTable)
    Dim row As DataRow 
    row = table.Rows(table.Rows.Count-1)
    row(table.Columns.Count-1) = newValue
End Sub

.NET Framework
Available since 1.1
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