Hello, I want to create dynamic tabPages in TabControl. In each tabPage I create dataGridView and i want to fill the entire space of each tabPage with this dataGrid. Here is code, where i do this:

private void tabControlMutants_SelectedIndexChanged(object sender, EventArgs e)
        {
            DataGridView dgw = new DataGridView(); 

 DataGridViewTextBoxColumn testCaseCol = new System.Windows.Forms.DataGridViewTextBoxColumn();
DataGridViewTextBoxColumn resultCol = new System.Windoows.Forms.DataGridViewTextBoxColumn();
//
// dataGridView1
//
dgw.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
dgw.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
testCaseCol,
resultCol});
dgw.Location = new System.Drawing.Point(3, 3);
dgw.Name = "dataGridView1";
dgw.AutoSize = true;
dgw.Dock = System.Windows.Forms.DockStyle.Fill;
dgw.TabIndex = 0;
//
// TestCaseColumn
//
testCaseCol.AutoSizeMode = System.Windows.Forms.DataGridViewAutoSizeColumnMode.Fill;
testCaseCol.HeaderText = "Test Case";
testCaseCol.Name = "TestCaseColumn";
//
// ResultColumn
//
resultCol.HeaderText = "Result";
resultCol.Name = "ResultColumn";
tabControlMutants.TabPages[(sender as TabControl).SelectedIndex].Controls.Add(dgw);
((System.ComponentModel.ISupportInitialize)(dgw)).EndInit();
//fill dataGridView
}

But it doesn't work, becouse when i resize the main window, data gridView doesn.t change its size (although the dock property is set to fill). Any ideas?