how to bind ASP.Net DropDownList control in EditItemTemplate of GridView on edit(imagebutton)click

Question

I have requirement to bind ASP.Net DropDownList control in EditItemTemplate of GridView. I have a edit imagebutton with commandname=\"Edit\"also dropdown needs to be binded

Answer 1

Your forgot to bind the dropdown list

DStatusEdit.DataBind();

Answer 2

protected void gv_RowDataBound(object sender, GridViewEditEventArgs e)
{
   if (e.Row.RowType == DataControlRowType.DataRow)
      {
            if ((e.Row.RowState & DataControlRowState.Edit) > 0)
            {
              DropDownList DStatusEdit= (DropDownList)e.Row.FindControl("DStatusEdit");
              DataTable dt = con.GetData("select distinct status from directory");
              DStatusEdit.DataSource = dt;
              DStatusEdit.DataTextField = "status";
              DStatusEdit.DataValueField = "status";
              DStatusEdit.DataBind();
              DataRowView dr = e.Row.DataItem as DataRowView;
              DStatusEdit.SelectedValue = dr["columnname"].ToString();
            }
       }
    }
 }

    protected void gv_RowEditing(object sender, GridViewEditEventArgs e)
    {
      gv.EditIndex = e.NewEditIndex;
      gridviewBind();// your gridview binding function
    }

Answer 3

I think this is helpful

private void bind_gridview_with_dropdownlist()
{

    DataSet ds = edtcoursedal.Loaddropdown();

    foreach (GridViewRow grdRow in GridView1.Rows)
    {
 DropDownList bind_dropdownlist = (DropDownList)(GridView1.FooterRow.Cells[3].FindControl("drplmaincourse"));
            bind_dropdownlist.DataSource = ds;
            bind_dropdownlist.DataTextField = "C_name";
            bind_dropdownlist.DataValueField = "MId";
            bind_dropdownlist.DataBind();
        }

    bind_dropdownlist.Items.Insert(0,new ListItem("Select","0"));
}

Answer 4

Code: Try this

protected void gv_RowDataBound(object sender, GridViewEditEventArgs e)
    {
     if (e.Row.RowType == DataControlRowType.DataRow)
      {
            if ((e.Row.RowState & DataControlRowState.Edit) > 0)
            {
              DropDownList ddList= (DropDownList)e.Row.FindControl("DStatusEdit");
              //bind dropdownlist
              DataTable dt = con.GetData("select distinct status from directory");
              ddList.DataSource = dt;
              ddList.DataTextField = "YourCOLName";
              ddList.DataValueField = "YourCOLName";
              ddList.DataBind();

              DataRowView dr = e.Row.DataItem as DataRowView;
              //ddList.SelectedItem.Text = dr["YourCOLName"].ToString();
              ddList.SelectedValue = dr["YourCOLName"].ToString();
            }
       }
    }

Have already answer similar question Binding dropdownlist inside gridview edititemtemplate

View Blog Article : How to bind drop-down list inside gridview edit template

Answer 5

protected void GridView2_RowDataBound(object sender, GridViewRowEventArgs e) {

    using (SqlConnection con = new SqlConnection(ConnectionString))
    {
        using (SqlCommand cmd = new SqlCommand("SELECT GatePassNo,PurposeOfVisit FROM VisitorList"))
        {
            cmd.CommandType = CommandType.Text;
            cmd.Connection = con;
            con.Open();
            DropDownList ddlpurposeofvisit = (DropDownList)e.Row.FindControl("ddlpurposeofvisit");
            ddlpurposeofvisit.DataSource = cmd.ExecuteReader();
            ddlpurposeofvisit.DataTextField = "PurposeOfVisit";
            ddlpurposeofvisit.DataValueField = "GatePassNo";
            ddlpurposeofvisit.DataBind();
            con.Close();
        }
    }

}