protected void AdjVouGridview_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
DataTable dt = (DataTable)ViewState["CurrentTable"];
if (dt.Rows.Count > 1)
{
dt.Rows.RemoveAt(e.RowIndex);
Session["LastQty"] = dt.Rows[dt.Rows.Count - 1]["Column5"];
List <string> PriceList = new List <string>();
foreach (GridViewRow r in AdjVouGridview.Rows)
{
TextBox tbPrice = (TextBox)r.Cells[3].FindControl("priceTxt");
PriceList.Add(tbPrice.Text);
}
Session["PriceList"] = PriceList;
// ViewState["CurrentTable"] = dt;
AdjVouGridview.DataSource = dt;
AdjVouGridview.DataBind();
SetPreviousData();
TextBox tbQty = (TextBox)AdjVouGridview.Rows[dt.Rows.Count - 1].Cells[4].FindControl("qtyTxt");
tbQty.Text = (string)Session["LastQty"];
for (int i = 0; i < AdjVouGridview.Rows.Count; i++)
{
TextBox tbPrice = (TextBox)AdjVouGridview.Rows[i].Cells[3].FindControl("priceTxt");
PriceList = (List <string>)Session["priceList"];
tbPrice.Text = PriceList[i];
}
}
else
{
Page.ClientScript.RegisterStartupScript(this.GetType(), "script", "<script>alert('You should choose at least one item!')</script>");
}
}
private void AddNewRowToGrid()
{
if (ViewState["CurrentTable"] != null)
{
DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
DataRow drCurrentRow = null;
if (dtCurrentTable.Rows.Count > 0)
{
drCurrentRow = dtCurrentTable.NewRow();
//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++)
{
TextBox box1 = (TextBox)AdjVouGridview.Rows[i].Cells[1].FindControl("priceTxt");
TextBox box2 = (TextBox)AdjVouGridview.Rows[i].Cells[2].FindControl("qtyTxt");
dtCurrentTable.Rows[i]["Column4"] = box1.Text;
dtCurrentTable.Rows[i]["Column5"] = box2.Text;
DropDownList ddl1 = (DropDownList)AdjVouGridview.Rows[i].Cells[0].FindControl("DropDownListCategory");
DropDownList ddl2 = (DropDownList)AdjVouGridview.Rows[i].Cells[1].FindControl("DropDownListItemCode");
DropDownList ddl3 = (DropDownList)AdjVouGridview.Rows[i].Cells[2].FindControl("DropDownListItemName");
dtCurrentTable.Rows[i]["Column1"] = ddl1.SelectedItem.Text;
dtCurrentTable.Rows[i]["Column2"] = ddl2.SelectedItem.Text;
dtCurrentTable.Rows[i]["Column3"] = ddl2.SelectedItem.Text;
}
//Rebind the Grid with the current data to reflect changes
AdjVouGridview.DataSource = dtCurrentTable;
AdjVouGridview.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("Column1", typeof(string)));
dt.Columns.Add(new DataColumn("Column2", typeof(string)));
dt.Columns.Add(new DataColumn("Column3", typeof(string)));
dt.Columns.Add(new DataColumn("Column4", typeof(string)));
dt.Columns.Add(new DataColumn("Column5", typeof(string)));
dr = dt.NewRow();
dr["Column5"] = string.Empty;
dt.Rows.Add(dr);
//Store the DataTable in ViewState for future reference
ViewState["CurrentTable"] = dt;
//Bind the Gridview
AdjVouGridview.DataSource = dt;
AdjVouGridview.DataBind();
//After binding the gridview, we can then extract and fill the DropDownList with Data
DropDownList ddl1 = (DropDownList)AdjVouGridview.Rows[0].Cells[0].FindControl("DropDownListCategory");
TodayDateLbl.Text = DateTime.Today.ToShortDateString();
}
