private void AddNewRowToGrid()
{
if (ViewState["CurrentTable"] != null)
{
DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
DataRow drCurrentRow = null;
if (dtCurrentTable.Rows.Count > 0)
{
drCurrentRow = dtCurrentTable.NewRow();
drCurrentRow["RowNumber"] = dtCurrentTable.Rows.Count + 1;
//add new row to DataTable
dtCurrentTable.Rows.Add(drCurrentRow);
//Store the current data to ViewState for future reference
ViewState["CurrentTable"] = dtCurrentTable;
for (int i = 0; i < dtCurrentTable.Rows.Count - 1; i++)
{
//extract the TextBox values
TextBox box1 = (TextBox)GridV1.Rows[i].Cells[2].FindControl("TextBox1");
TextBox box2 = (TextBox)GridV1.Rows[i].Cells[3].FindControl("TextBox2");
TextBox box3 = (TextBox)GridV1.Rows[i].Cells[4].FindControl("TextBox3");
TextBox box4 = (TextBox)GridV1.Rows[i].Cells[5].FindControl("TextBox4");
TextBox box5 = (TextBox)GridV1.Rows[i].Cells[6].FindControl("TextBox5");
dtCurrentTable.Rows[i]["Column2"] = box1.Text;
dtCurrentTable.Rows[i]["Column3"] = box2.Text;
dtCurrentTable.Rows[i]["Column4"] = box3.Text;
dtCurrentTable.Rows[i]["Column5"] = box4.Text;
dtCurrentTable.Rows[i]["Column6"] = box5.Text;
//extract the DropDownList Selected Items
DropDownList ddl1 = (DropDownList)GridV1.Rows[i].Cells[1].FindControl("DropDownList1");
// Label lbl1 = (Label)Gridview1.Rows[i].Cells[3].FindControl("Label1");
//DropDownList ddl2 = (DropDownList)Gridview1.Rows[i].Cells[2].FindControl("DropDownList2");
// Update the DataRow with the DDL Selected Items
dtCurrentTable.Rows[i]["Column1"] = ddl1.SelectedItem.Text;
//dtCurrentTable.Rows[i]["Column3"] = lbl1.Text;
//dtCurrentTable.Rows[i]["Column2"] = ddl2.SelectedItem.Text;
}
//Rebind the Grid with the current data to reflect changes
GridV1.DataSource = dtCurrentTable;
GridV1.DataBind();
}
}
else
{
Response.Write("ViewState is null");
}
//Set Previous Data on Postbacks
SetPreviousData();
}
private void SetInitialRow()
{
DataTable dt = new DataTable();
DataRow dr = null;
dt.Columns.Add(new DataColumn("RowNumber", typeof(string)));
dt.Columns.Add(new DataColumn("Column1", typeof(string)));
dt.Columns.Add(new DataColumn("Column2", typeof(string))); //for TextBox value
dt.Columns.Add(new DataColumn("Column3", typeof(string))); //for TextBox value
dt.Columns.Add(new DataColumn("Column4", typeof(string))); //for TextBox value
dt.Columns.Add(new DataColumn("Column5", typeof(string))); //for TextBox value
dt.Columns.Add(new DataColumn("Column6", typeof(string))); //for TextBox value
dr = dt.NewRow();
dr["RowNumber"] = 1;
dr["Column2"] = string.Empty;
dr["Column3"] = string.Empty;
dr["Column4"] = string.Empty;
dr["Column5"] = string.Empty;
dr["Column6"] = string.Empty;
dt.Rows.Add(dr);
//Store the DataTable in ViewState for future reference
ViewState["CurrentTable"] = dt;
//Bind the Gridview
GridV1.DataSource = dt;
GridV1.DataBind();
//After binding the gridview, we can then extract and fill the DropDownList with Data
DropDownList ddl1 = (DropDownList)GridV1.Rows[0].Cells[1].FindControl("DropDownList1");
//Label lbl1 = (Label)Gridview1.Rows[0].Cells[3].FindControl("Label1");
// DropDownList ddl2 = (DropDownList)Gridview1.Rows[0].Cells[2].FindControl("DropDownList2");
// FillDropDownList(ddl1);
// FillDropDownList(ddl2);
}
