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DataColumn Constructor (String)

Initializes a new instance of the DataColumn class, as type string, using the specified column name.

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

public DataColumn(
	string columnName
)

Parameters

columnName
Type: System.String

A string that represents the name of the column to be created. If set to null or an empty string (""), a default name will be specified when added to the columns collection.

By default, the name specific to a column becomes the Caption property value.

The following example creates a new DataColumn with a specified ColumnName.

private void AddDataColumn(DataTable table)
{
    DataColumn column = new DataColumn("id");

    // Set various properties.
    column.DataType = System.Type.GetType("System.Int32");
    column.AutoIncrement = true;
    column.AutoIncrementSeed = 1;
    column.AutoIncrementStep = 1;
    column.ReadOnly = true;

    // Add to Columns collection.
    table.Columns.Add(column);
}

.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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