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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class CallbackExample : System.Web.UI.Page, ICallbackEventHandler
{
string callbackResult;
protected void Page_Load(object sender, EventArgs e)
{
if (IsCallback)
return;
string callBackFunctionCall = ClientScript.GetCallbackEventReference(this, "getSelectedItemID()", "onCallbackComplete", null, "onCallbackError", true);
Page.ClientScript.RegisterClientScriptBlock(GetType(), "CallBack", "function DoClientCallBack() { " + callBackFunctionCall + "} ", true);
}
#region ICallbackEventHandler Members
public string GetCallbackResult()
{
return callbackResult;
}
public void RaiseCallbackEvent(string eventArgument)
{
try
{
callbackResult = Warehouse.GetItemQuantity(eventArgument).ToString();
}
catch (Exception e)
{
Trace.Write(e.Message);
throw new Exception("Error checking quantity");
}
}
#endregion
}
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