Best Way to transfer data From one page to another In asp.net.

You can send data from one page to another by using following techniques:

-View state
-Control state
-Hidden fields
-Cookies
-Query strings
-Application state
-Session state
-Profile Properties

All are the best way for sending the data one page to another :)

Actually sending the data from one page to another, depends on data size and type.

I am giving the some example base in my experience like

* If I need to pass value like int, string etc. means small size data it good to use Query string. You can encrypt the data if you have security issue.

* If you need to pass some Object or XML (Again small Size) you can use the session Object.

* But, if you need to pass large data better to use session management. In this you have three options InProc, Out Pro and SQL.

* If you need to pass some control values from one page to another page better to use page posting

Hi,

You may use delegate.

Example code:

In you client code:

<%@ Register Assembly="AjaxControlToolkit" 
Namespace="AjaxControlToolkit" TagPrefix="cc1" %> 

<%@ Register Src="~/UserControls/City.ascx" 
TagName="ucSearchCityAddr" TagPrefix="uc1" %>



<cc1:ModalPopupExtender  runat="server" ID="mpeSearchCityAddr" TargetControlID="hfSearchCityAddr"
  PopupControlID="panelSearchCityAddr" BackgroundCssClass="modalBackground" DropShadow="true"
  Y="40">
</cc1:ModalPopupExtender>
<asp:Button SkinID="skinButtonM" runat="server" ID="hfSearchCityAddr" Style="display: none" />
<asp:Panel runat="server" Width="80%" ID="panelSearchCityAddr" Style="display: none;">
   <uc1:ucSearchCityAddr  runat="server" ID="ucSearchCityAddr" />
</asp:Panel>

// In your .aspx Code behind...
protected void Page_Load(object sender, EventArgs e)
{       
    // SearchCityAddr------
    ucSearchCityAddr.SendValue += delegate(string cityName, string cityCode)
    {
        this.txtCityCode.Text = cityCode;
        this.txtCityName.Text = cityName 	
    };
    // Some code...
    //...
} 

public void CloseModalCityAddr()
{
   mpeSearchCityAddr.Hide(); 
}

// In your Web User Control Code behind..
public delegate void SendCityAddr(string cityName, string cityCode);
public event SendCityAddr SendValue;

// Some code...
//...

protected void lnkCityName_Click(object sender, EventArgs e)
{
   LinkButton lnkCityName = (LinkButton)sender;
   GridViewRow row = (GridViewRow)lnkCityName.NamingContainer;
   if (SendValue != null)
   {
      SendValue(((LinkButton)row.FindControl("lnkCityName")).Text,
      ((Label)row.FindControl("lblCityCode")).Text);
      Page.GetType().InvokeMember("CloseModalCityAddr",System.Reflection.BindingFlags.InvokeMethod, null, Page, null);

   }
}

Hope this could help...

Regards,

Dude My Suggesion is to use querystrings it works