提醒消息框

Question

I have been using label text to show different status in an asp.net website.

eg "Profile Updates", "Invalid Character" etc, however would prefer to have a pop up message box instead.

This is what I have tried -

string alert = ws.webMethod(TextBox1.Text);
System.Web.HttpContext.Current.Response.Write("<SCRIPT LANGUAGE='JavaScript'>alert(" + alert + ")</SCRIPT>");

However when this is fired, the screen in IE just seems to get bigger, and no message box is presented.

How can I achieve this?

Answer 1

I would not advise doing this, it looks like you are creating a modal dialog on page load, meaning that your page cannot continue processing until a user has clicked OK.

That said, however, your problem is probably a lack of quotes around the alert ed text:

System.Web.HttpContext.Current.Response.Write("<SCRIPT LANGUAGE='JavaScript'>alert('" + alert + "')</SCRIPT>");

Answer 2

Use ClientScriptManager.RegisterClientScriptBlock instead of Response.Write

string alert = ws.webMethod(TextBox1.Text);
string script = "<SCRIPT LANGUAGE='JavaScript'>alert(" + alert + ")</SCRIPT>" 
Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "scriptBlockName", script );

Answer 3

我在我的项目中使用过这个，对我来说很好

 ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "MessageBox", "alert('message')", true);

Answer 4

you can use alert or you can use jquery plugin like this and this . if use jquery plugin you can custom message box like change backColor or...