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我有一个模式弹出窗口,我想在函数开始时显示它。相反,它会在处理完函数后出现。

    protected void RadListView1_SelectedIndexChanged(object sender, EventArgs e)
    {
        string script = "function f(){$find(\"" + DisclaimerAlertWindow.ClientID + "\").show(); Sys.Application.remove_load(f);}Sys.Application.add_load(f);";
        ScriptManager.RegisterStartupScript(Page, Page.GetType(), "key", script, true);  


// other business logic
}  

如何在调用函数时显示 modalpopup?

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