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sagar Bhosale
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179
175.7k
Can i used Session value two time in single page?
Jul 22 2011 6:59 AM
hi friends ,
can i use session value two times becouse at sexond time when i used session i get null value
plz help me
my code is
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
//imgExport.Visible = false;
string ID = Request.QueryString["0"];
txtqueryexec.Text = "";
string LoginId = Convert.ToString(Session["LoginID"]);
if (LoginId !="")
{
FillGrid();
}
}
Session["DrdQury"] = drpdwn_query.SelectedItem.Text.ToString();
Session["TxtQuery"] = txtqueryexec.Text.Trim();
}
protected void btnexec_Click(object sender, EventArgs e)
{
}
private void FillGrid()
{
DataSet ds;
string drd = Convert.ToString(Session["DrdQury"]); //my first session
string txt = Convert.ToString(Session["TxtQuery"]);
if (!String.IsNullOrEmpty(Convert.ToString(Session["DrdQury"])) && !String.IsNullOrEmpty(Convert.ToString(Session["TxtQuery"])))
{
ds = objclient.get_queryexec(drd, txt);
//Session["DrdQury"] = "null"; Session["TxtQuery"] = "null";
}
else
{
ds = objclient.get_queryexec(drpdwn_query.SelectedItem.Text, txtqueryexec.Text);
}
if (ds.Tables[0].Rows.Count > 0)
{
gv_command.Visible = true;
gv_command.DataSource = ds;
gv_command.DataBind();
}
}
protected void drpdwn_query_SelectedIndexChanged(object sender, EventArgs e)
{
string query = drpdwn_query.SelectedItem.Text;
switch(query)
{
case "SELECT":
txtqueryexec.Text = "SELECT * FROM [TABLENAME]";
break;
case "INSERT":
txtqueryexec.Text = "INSERT INTO [TABLENAME] [(col1, col2, col3,...colN)] VALUES (value1, value2, value3,...valueN)";
break;
case "UPDATE":
txtqueryexec.Text = "UPDATE [TABLENAME] SET column_1 = [value1], column_2 = [value2]";
break;
}
}
protected void imgExport_Click(object sender, ImageClickEventArgs e)
{
string strPath = Server.MapPath(Request.ApplicationPath);
strPath = strPath + "\\ExportedFiles\\SchemeRating.xls";
string drd = Convert.ToString(Session["DrdQury"]); //my second session but here i got null value
string txt = Convert.ToString(Session["TxtQuery"]);
DataSet ds = objclient.get_queryexec(drd, txt);
exportToExcelSlow(ds.Tables[0], strPath);
Response.Clear();
Response.Buffer = true;
Response.Charset = "";
Response.ClearContent();
Response.ContentType = "application/ms-excel";
Response.AddHeader("content-disposition", "attachment; filename=SchemeRating.xls");
Response.WriteFile(strPath);
Response.End();
Response.Flush();
}
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