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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);
}


.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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