unable to retrieve the hidden fields value

Question

Hey m not able to retrieve the hidden fileld(hiddenfield) value in Program.ascx.cs from Program.ascx file function ConfirmIt() { var x = confirm(Do you Want to notify changes to User ??); var control = ' '; if (x == true) { document.getElementById(control).value = 1; } else { document.getElementById(control).value = 0; } } showWaitMessage(); Runat=server Font-Name=Verdana>Start Date (mm/dd/yy): runat=server Width=75>    Runat=server Font-Name=Verdana>End Date (mm/dd/yy): Width=75> Font-Names=Verdana BorderStyle=None BorderWidth=2px BorderColor=Gray CellPadding=3 PageSize=20 AllowSorting=True AutoGenerateColumns=False> BorderColor=Silver BackColor=SteelBlue> HeaderText=Number> ropDownList id=dd runat=server Width=87px Font-Size=XX-Small Font-Names=Verdana Font-Bold=True ForeColor=Black onselectedindexchanged=dd_SelectedIndexChanged onChange=ConfirmIt() AutoPostBack=true > Pending Yes No ropDownList> function showWaitMessage() { } //many more functions. My Program.ascx.cs is namespace a.b.c { using System; using System.Configuration; using System.Data; using System.Data.SqlClient; using System.Text; using System.Drawing; using System.Web.UI; using System.Web.UI.WebControls; using System.Collections.Generic; using System.Web; /// /// /// public partial class Program : System.Web.UI.UserControl { private string tDate = string.Empty; #region Class Variables //strings and variables initialization #region GUI Components //all gui componenets.. protected System.Web.UI.WebControls.Label Label1; protected System.Web.UI.WebControls.ImageButton btnRefresh; #endregion #endregion #region Public Properties public bool IsAdmin { } public string SortExpression { } //many public functions #endregion #region Web Form Designer generated code override protected void OnInit(EventArgs e) { InitializeComponent(); base.OnInit(e); } /// /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// private void InitializeComponent() { this.btnSaveChanges.Click += new System.Web.UI.ImageClickEventHandler(this.btnSaveChanges_Click); this.btnExcel.Click += new System.Web.UI.ImageClickEventHandler(this.btnExcel_Click); //many more this.Load += new System.EventHandler(this.Page_Load); // this.ddPreApproved.SelectedIndexChanged += new System.EventHandler(this.ddPreApproved_SelectedIndexChanged); } #endregion #region Public Methods //many more public method.. public void Refresh() { try { } catch (Exception ex) { } } #endregion #region Private Methods //many private functions...i have just displayed mine..I have changed private to //protected..then also its not working private void ddPreApproved_SelectedIndexChanged(object sender EventArgs e) { int DiagResult = int.Parse(inpHide.Value); if (DiagResult == 1) { //Do Somthing Response.Write(You Have Selected Ok); } else if (DiagResult == 0) { //Do somthing Response.Write(You have Selected Cancel); } } private void btnSaveChanges_Click(object sender System.Web.UI.ImageClickEventArgs e) { } #endregion } } Can u think of any soln for this so that hiddenfield is retrieved..Do u think there is problem in the Program.ascx..Just check it if i have put form and div correctly... And also i have not pasted all my code but only the code that is neccessary...Here the program which i am doing goes like this..If user does any changes in the drop-downlistIt should notify to the user..For that m using hiddenfield concept but its not working ..

Rekha Singh · Answer

hey swati just place closing tag above ur tag and below ur asp : DataGrid > tag .. tats d actual problem.. make sure all ur tags are closed and ya place ur hidden field outside ur datagrid try out this code.. @ Control Language =C# AutoEventWireup =true CodeFile =WebUserControl.ascx.cs Inherits =WebUserControl %> html xmlns =http://www.w3.org/1999/xhtml> head > script type =text/javascript> function ConfirmIt() { var x = confirm( Do you Want to notify changes to User ?? ); var control = ' ' ; if (x == true ) { document.getElementById(control).value = 1 ; } else { document.getElementById(control).value = 0 ; } } script > head > body > form id =form1 runat =server> script language =javascript> script > script event =onbeforeunload for =window> showWaitMessage(); script > table style =font-size: xx-small; font-family: verdana cellpadding =2> tr > td style =height: 24px> asp : Label ID =StartDate runat =server> asp : Label > td > td style =height: 24px> asp : TextBox Style =text-align: center Wrap =False MaxLength =10 ID =TextBox1 Height =18px runat =server Width =75> asp : TextBox > td > td style =height: 24px>    td > td style =height: 24px> asp : label ID =EndDate Font-Size =XX-Small Font-Names =Verdana Text =Add:  runat =server Font-Name =Verdana> End Date (mm/dd/yy): asp : label > td > td style =height: 24px> asp : TextBox ID =TextBox2 runat =server Height =18px Wrap =False MaxLength =10 Style =text-align: center Width =75> asp : TextBox > td > tr > table > br /> br /> input id =inpHide type =hidden runat =server /> asp : HiddenField ID =HiddenField1 runat =server /> br /> table id =Table1 runat =server> tr > td colspan =3 style =width: 941px> asp : DataGrid runat =server ID =datagrid Width =1077px HorizontalAlign =Center BackColor =White Font-Names =Verdana BorderStyle =None BorderWidth =2px BorderColor =Gray CellPadding =3 PageSize =20 AllowSorting =True AutoGenerateColumns =False> FooterStyle ForeColor =#000066 BackColor =White> FooterStyle > Columns > asp : HyperLinkColumn Target =_blank DataNavigateUrlField =Link DataTextField =Number SortExpression =Number HeaderText =Number> HeaderStyle HorizontalAlign =Center Width =60px> HeaderStyle > ItemStyle HorizontalAlign =Center> ItemStyle > asp : HyperLinkColumn > asp : BoundColumn Visible =False DataField =Pre SortExpression =Pre> asp : BoundColumn > asp : TemplateColumn SortExpression =Pre HeaderText =Pre?> HeaderStyle HorizontalAlign =Center Width =80px> HeaderStyle > ItemTemplate > div > asp:Dropdownlist id =dd runat =server width =87px font-size =XX-Small font-names =Verdana font-bold =True forecolor =Black onselectedindexchanged =dd_SelectedIndexChanged onchange =ConfirmIt() autopostback =true> asp : ListItem Value =Pending> Pending asp : ListItem > asp : ListItem Value =Yes> Yes asp : ListItem > asp : ListItem Value =No> No asp : ListItem > asp:Dropdownlist > div > ItemTemplate > asp : TemplateColumn > asp : BoundColumn Visible =False DataField =Notes SortExpression =Notes> asp : BoundColumn > asp : TemplateColumn SortExpression =Notes HeaderText =Pre_Notes> HeaderStyle Wrap =True HorizontalAlign =Center Width =100px> HeaderStyle > ItemStyle HorizontalAlign =Center> ItemStyle > ItemTemplate > asp : TextBox ID =txtNote TextMode =MultiLine Wrap =true Columns =30 Rows =2 runat =server Font-Names =Verdana Font-Size =XX-Small> asp : TextBox > ItemTemplate > asp : TemplateColumn > asp : BoundColumn DataField =State SortExpression =State ReadOnly =True HeaderText =State> HeaderStyle HorizontalAlign =Center Width =100px> HeaderStyle > asp : BoundColumn > Columns > asp : DataGrid > td > tr > table > form > script language =javascript> function showWaitMessage() { } //many more functions. script > body > html > ***************************************** Please mark it Accepted if u find it helpful.

Santhosh N · Answer

the better approach as i look to this is to have a property in the usercontrol and by default have that false and once user changes the dropdown then set that to true... and properties could be accessed from aspx.cs or ascx.cs...