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<asp:Button ID="Button1" runat="server" Text="ÉÏ´«" OnClick="Button1_Click" />
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<Triggers>
<asp:PostBackTrigger ControlID="Button1" />
</Triggers>
</asp:UpdatePanel>
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private void ShowPanel()
{
string script = "document.getElementById('Panel1').style.display='';";
ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "ShowPanel", script, true);
}
private void ClosePanel()
{
string script = "document.getElementById('Panel1').style.display='none';";
ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "ClosePanel", script, true);
}


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