ASP.Net - 在用户控制服务器端方法中调用javascript [英] ASP.Net - Calling javascript in User Control server side method

问题描述

我有一个带有公共方法的用户控件：

I have a user control with a public method:

    public void ShowDetails(Guid requestGuid)
    {            
        Label1.Text = reportGuid.ToString(); //only for testing            

        ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(), "ShowEmailPreview", "alert('hi');", true);
        //ScriptManager.RegisterStartupScript(this, this.GetType(), "ShowEmailPreview", "alert('hi');", true); //doesn't work
        //Page.ClientScript.RegisterStartupScript(this.GetType(), "ShowEmailPreview", "alert('hi');", true); //doesn't work
    }

当此用户控件的托管页面调用ShowDetails（ ），我需要调用一些javascript。

When hosting page for this user control calls ShowDetails(), I need to call some javascript.

我尝试使用ScriptManager.RegisterStartupScript和Page.ClientScript.RegisterStartupScript但它不起作用...但是如果我添加一个UpdatePanel在我的控件上并为UpdatePanel添加脚本，如上所示，它运行良好。

I tried with ScriptManager.RegisterStartupScript and Page.ClientScript.RegisterStartupScript but it doesn't work... However if I add an UpdatePanel on my control and add script for UpdatePanel as shown above, it works well.

我不想为了调用javascript而将UpdatePanel添加到我的控件中。

I don't want to add UpdatePanel onto my control just for the sake of calling javascript.

我错过了什么吗？

谢谢！

推荐答案

实际上如下所示更改代码应该有效。

Actually changing your code as following should work.

ScriptManager.RegisterStartupScript(this.Page, typeof(System.Web.UI.Page), "ShowEmailPreview", "alert('hi');", true);

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