Represents a single object that provides all of the functionality needed to retrieve and manipulate data from a SQL Server data source.
This sample shows easiness of use of
SqlDataTable. The sample creates a
SqlDataTable object, passing it SQL query text and connection string, retrieves data from a table and modifies it. Content of the table is printed to console then. Notice that no other component needs to be created by programmer.
public void UseDataTable()
{
SqlDataTable myDataTable = new SqlDataTable("SELECT * FROM Test.Dept",
"User Id=sa;Server=localhost;Initial Catalog=Test;");
try
{
myDataTable.FetchAll = true;
myDataTable.Active = true;
myDataTable.Rows[3]["DName"] = "Researches";
Console.WriteLine(myDataTable.Update()+" rows updated.");
foreach(DataRow myRow in myDataTable.Rows)
{
foreach(DataColumn myCol in myDataTable.Columns)
{
Console.Write(myRow[myCol]+"\t");
}
Console.WriteLine();
}
}
finally
{
myDataTable.Active = false;
}
}
Public Sub UseDataTable()
Dim myDataTable As SqlDataTable = New SqlDataTable("SELECT * FROM Test.Dept", _
"User Id=sa;Server=localhost;Initial Catalog=Test;")
Try
myDataTable.FetchAll = True
myDataTable.Active = True
myDataTable.Rows(3)("DName") = "Researches"
Console.WriteLine(myDataTable.Update() & " rows updated.")
Dim myRow As DataRow
Dim myCol As DataColumn
For Each myRow In myDataTable.Rows
For Each myCol In myDataTable.Columns
Console.Write(myRow(myCol) & Chr(9))
Next myCol
Console.WriteLine()
Next myRow
Finally
myDataTable.Active = False
End Try
End Sub
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2