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: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0
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