DataView::ToTable Method (String^, Boolean, array<String^>^)


Creates and returns a new DataTable based on rows in an existing DataView.

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

DataTable^ ToTable(
	String^ tableName,
	bool distinct,
	... array<String^>^ columnNames


Type: System::String^

The name of the returned DataTable.

Type: System::Boolean

If true, the returned DataTable contains rows that have distinct values for all its columns. The default value is false.

Type: array<System::String^>^

A string array that contains a list of the column names to be included in the returned DataTable. The DataTable contains the specified columns in the order they appear within this array.

Return Value

Type: System.Data::DataTable^

A new DataTable instance that contains the requested rows and columns.

Use this overloaded version of the ToTable method if you have to retrieve distinct values in a subset of available columns, specifying a new name for the returned DataTable. If you do not need distinct rows or a subset of columns, see ToTable.

The following console application example creates a DataTable, fills the DataTable with data, sorts the DataView, and finally creates a DataTablewith a new name that contains just two columns, limited to rows in which all values are unique.

No code example is currently available or this language may not be supported.

The example displays the following output in the console window:

Original table name: NewTable
Current Values in Table
1, Fruit, Apple, 14
2, Fruit, Orange, 27
3, Bread, Muffin, 23
4, Fish, Salmon, 12
5, Fish, Salmon, 15
6, Bread, Croissant, 23

Current Values in View
3, Bread, Muffin, 23
6, Bread, Croissant, 23
4, Fish, Salmon, 12
5, Fish, Salmon, 15
1, Fruit, Apple, 14
2, Fruit, Orange, 27

Table created from sorted DataView
Bread, 23
Fish, 12
Fish, 15
Fruit, 14
Fruit, 27

New table name: UniqueData

.NET Framework
Available since 2.0
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