protected void BindDataToDropdownList()
    {
        DataTable table = categoryBll.Category_ShowAllDisplay();

        ddlCategory.Items.Clear();
        ddlCategory.Items.Add(new ListItem("Choose Name", "0"));
        ddlCategory.Items.Add(new ListItem("-- Other --", "1"));
        for (int i = 0; i < table.Rows.Count; i++)
        {
            ListItem item = new ListItem();
            item.Text  = table.Rows[i]["Category_Name"].ToString();
            item.Value = table.Rows[i]["Category_Id"].ToString();
            ddlCategory.Items.Add(item);
        }

        DataTable dataTable = companyBll.Company_ShowAllDisplay("");

        ddlCompany.Items.Clear();
        ddlCompany.Items.Add(new ListItem("Choose Name", "0"));
        for (int i = 0; i < dataTable.Rows.Count; i++)
        {
            ListItem item = new ListItem();
            item.Text  = dataTable.Rows[i]["Company_Name"].ToString();
            item.Value = dataTable.Rows[i]["Company_Id"].ToString();
            ddlCompany.Items.Add(item);
        }
    }