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DataColumnCollection.Item Property (String)

Gets the DataColumn from the collection with the specified name.

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

public DataColumn this[
	string name
] { get; }

Parameters

name
Type: System.String

The ColumnName of the column to return.

Property Value

Type: System.Data.DataColumn
The DataColumn in the collection with the specified ColumnName; otherwise a null value if the DataColumn does not exist.

Item is conditionally case-sensitive when it searches for column names. For example, if one DataColumn is named "mydatacolumn" and another is named "Mydatacolumn", a string used to search for one of the columns is regarded as case-sensitive. However, if "mydatacolumn" exists and "Mydatacolumn" does not, the search string is regarded as case-insensitive.

The following example uses the Item property to print the DataType value of a DataColumn object specified by index.

private void PrintDataType(DataTable table)
{
    // Get the DataColumnCollection from a DataTable in a DataSet.
    DataColumnCollection columns = table.Columns;

    // Print the column's data type.
    Console.WriteLine(columns["id"].DataType);
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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