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<asp:Panel ID="Panel1" runat="server" Height="50px" Width="125px">
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button1" /></asp:Panel>
<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="Button2" />
int a
{
get
{
return ViewState["a"] != null ? (int)ViewState["a"] : 0;
}
set
{
ViewState["a"] = value;
}
}
protected void Button1_Click(object sender, EventArgs e)
{
a = 123;
}
protected void Button2_Click(object sender, EventArgs e)
{
Response.Write(a.ToString());
}
int a=0;
==>
int a
{
get
{
return ViewState["a"] != null ? (int)ViewState["a"] : 0;
}
set
{
ViewState["a"] = value;
}
}