asp.net – RegisterStartupScript不适用于ScriptManager,Update

发布时间：2020-12-16 09:26:48 所属栏目：asp.Net 来源：网络整理

导读：protected void timer1_Tick(object sender,EventArgs e) { foreach (RepeaterItem item in rpChat.Items) { TextBox txt = item.FindControl("txtChatMessage") as TextBox; if (txt != null) { message[i] = txt.Text; i--; } } lblStatusChat.Text = "";

protected void timer1_Tick(object sender,EventArgs e)
    {
        foreach (RepeaterItem item in rpChat.Items)
        {
            TextBox txt = item.FindControl("txtChatMessage") as TextBox;
            if (txt != null)
            {
                message[i] = txt.Text;
                i--;
            }
        }
        lblStatusChat.Text = "";
        RepeaterBind();
        string javaScript = "<script language=JavaScript>n" + "alert('Button1_Click client-side');n" + "</script>";

        Page.ClientScript.RegisterStartupScript(this.GetType(),"myKey",javaScript);
    }

timer_click触发器和更新面板.并且警报消息不会显示在timer_tick事件上

解决方法

当您使用更新面板时,您不能像上面那样调用javascript.你必须使用

ScriptManager.RegisterStartupScript

所以改变你的

Page.ClientScript.RegisterStartupScript(this.GetType(),javaScript);

至

ScriptManager.RegisterStartupScript(updatePanelId,updatePanelId.GetType(),"alert",javaScript,true);

（编辑：李大同）

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