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DataRow.Item Property (String)

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

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

public Object this[
	string columnName
] { get; set; }

Parameters

columnName
Type: System.String

The name of the column.

Property Value

Type: System.Object
An Object that contains the data.

ExceptionCondition
ArgumentException

The column specified by columnName cannot be found.

DeletedRowInaccessibleException

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

InvalidCastException

Occurs when you set a value and its Type does not match DataType.

NoNullAllowedException

Occurs when you try to insert a null value into a column where AllowDBNull is set to false.

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

If this is an immediate 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. The second sets a value passed as an argument to the method.

private void DataGrid1_Click(
    object sender, System.EventArgs e)
{
    // Get the DataTable the grid is bound to.
    DataGrid thisGrid = (DataGrid) sender;
    DataTable table = (DataTable) thisGrid.DataSource;
    DataRow currentRow = 
        table.Rows[thisGrid.CurrentCell.RowNumber];

    // Get the value of the column 1 in the DataTable.
    Console.WriteLine(currentRow["FirstName"]);
    // You can also use the index: 
    // Console.WriteLine(currentRow[1]);
}

private void SetDataRowValue(
    DataGrid grid, object newValue)
{
    // Set the value of the first column in  
    // the last row of a DataGrid.
    DataTable table = (DataTable) grid.DataSource;
    DataRow row = table.Rows[table.Rows.Count-1];
    row["FirstName"] = newValue;
}

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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