datagrid select all rows

[Raj Chudasama]

how can i select all rows in a datagrid

also how can add checkbox to each of my rows in datagrid.

I tried to use DataGridColumnS tyle but failed

try

{

DataSet allCallDataSet = new DataSet();

allCallDataSet. ReadXml(xmlFile );

DataTable table = new DataTable("Hist ories");
DataColumn id = new DataColumn("Id" );

DataColumn date = new DataColumn("Dat e");

DataColumn device = new DataColumn("Dev ice");

DataColumn callId = new DataColumn("Cal lID");

DataColumn source = new DataColumn("Sou rce");

DataColumn dest = new DataColumn("Des tination");

table.Columns.A dd(id);

table.Columns.A dd(date);

table.Columns.A dd(device);

table.Columns.A dd(callId);

table.Columns.A dd(source);

table.Columns.A dd(dest);

// DataGridTableSt yle tableStyle = new DataGridTableSt yle();//
tableStyle.Mapp ingName = "Histories" ;

//

// DataGridColumnS tyle checkBox = new DataGridBoolCol umn();

// checkBox.Header Text = "Select";

// checkBox.Width = 50;

// tableStyle.Grid ColumnStyles.Ad d(checkBox);

//

// dataGrid3.Table Styles.Add(tabl eStyle);

//
DataRow row = null;

foreach(DataTab le t in allCallDataSet. Tables)

{

System.Diagnost ics.Debug.Write Line("Table name" + t.TableName);

foreach(DataRow r in t.Rows)

{

row = table.NewRow();

row["Id"] = r["Id"].ToString();

row["Date"] = r["Date"].ToString();

row["Device"] = r["Device"].ToString();

row["Date"] = r["Date"].ToString();

row["CallID"] = r["CallID"].ToString();

row["Source"] = r["Source"].ToString();

row["Destinatio n"] = r["Destinatio n"].ToString();

System.Diagnost ics.Debug.Write Line(row["Id"].ToString() + " " +
row["Date"].ToString());

table.Rows.Add( row);

}

}

allCallDataSet. Tables.Add(tabl e);

allCallDataSet. AcceptChanges() ;

dataGrid3.DataS ource = allCallDataSet. Tables["Histories"];

dataGrid3.Visib le = true;

}

catch(Exception ex)

{

MessageBox.Show (ex.Message);

return;

}