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DataTableCollection.Add Method (DataTable)

Adds the specified DataTable to the collection.

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

public void Add(
	DataTable table


Type: System.Data.DataTable
The DataTable object to add.


The value specified for the table is null.


The table already belongs to this collection, or belongs to another collection.


A table in the collection has the same name. The comparison is not case sensitive.

The CollectionChanged event occurs when a table is successfully added to the collection.

The following example creates a DataTable and adds it to the DataTableCollection of a DataSet.

private void AddDataTable()
    // Get the DataTableCollection of a DataGrid 
    // control's DataSet.
    DataTableCollection tables = 

    // Create a new DataTable.
    DataTable table = new DataTable();

    // Code to add columns and rows not shown here.

    // Add the table to the DataTableCollection.

.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.