C# - Usercontrol Code Behind Never Executed And Disappears When Click Button Inside Updatepanel

Apr 1, 2011

i have a usercontrol inside an updatepanel. when i click some button this usercontrol will be loaded. and the usercontrol itself has anither button in it. the problem is that the usercontrol code behind is never executed and when the button is clicked the usercontrol disappears.

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[Code]....

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[code]....

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[Code]....

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[Code]....

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[Code]....

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
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using System.Data.SqlClient;
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{
}
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{
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}
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}
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{
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