单击提交按钮时未显示消息框 [英] Message Box not showing when submit button is clicked

问题描述

我有一个消息框代码，用于显示用户点击提交按钮但未显示的情况。我做错了什么？代码是对的吗？

I have a code for a messagebox to show when the user clicks on the submit button but it does not show. What did I do wrong? Is the code right?

protected void Submit_Click(object sender, EventArgs e)
       {
           SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["HOTConnectionString"].ConnectionString);
           con.Open();

           SqlCommand cmd = new SqlCommand("Insert into Table2013 (INST_ID, UNITID, ASTUDENTS, ACOMPLETED, ATRANSFERS, BSTUDENTS, BCOMPLETED, BTRANSFERS, YEAR, DATE) values (@INST_ID, @UNITID, @ASTUDENTS, @ACOMPLETED, @ATRANSFERS, @BSTUDENTS, @BCOMPLETED, @BTRANSFERS, @YEAR, @DATE)Insert into Table2014 (INST_ID, UNITID, ASTUDENTS, ACOMPLETED, ATRANSFERS, BSTUDENTS, BCOMPLETED, BTRANSFERS, YEAR, DATE) values (@INST_ID, @UNITID, @ASTUDENTS, @ACOMPLETED, @ATRANSFERS, @BSTUDENTS, @BCOMPLETED, @BTRANSFERS, @YEAR, @DATE)", con);

           cmd.Parameters.AddWithValue("@ASTUDENTS", TextBoxTNUGSC.Text);
           cmd.Parameters.AddWithValue("@ACOMPLETED", TextBoxTNUGSCD.Text);
           cmd.Parameters.AddWithValue("@ATRANSFERS", TextBoxTTOUG.Text);
           cmd.Parameters.AddWithValue("@BSTUDENTS", TextBoxTNGSC.Text);
           cmd.Parameters.AddWithValue("@BCOMPLETED", TextBoxTNGSCD.Text);
           cmd.Parameters.AddWithValue("@BTRANSFERS", TextBoxTTOG.Text);
           cmd.Parameters.AddWithValue("@YEAR", TextBoxYEAR.Text);
           cmd.Parameters.AddWithValue("@DATE", TextBoxDATE.Text);
           cmd.Parameters.AddWithValue("@UNITID", TextBoxUNITID.Text);
           cmd.Parameters.AddWithValue("@INST_ID", TextBoxINST_ID.Text);

           try
           {
               cmd.ExecuteNonQuery();
               con.Close();
               Response.Redirect("Gradrate.aspx");

           }
           catch (Exception er)
           {
               ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "alert('You Have Successfully Submitted Your Cohort')", true);
           }
           finally
           {
           }
       }

推荐答案

您需要使用RegisterStartupScript。您刚刚注册了该块，但没有任何内容正在调用该代码。如果您将其注册为启动，则意味着它将在页面加载时运行。但是，我更喜欢标签的想法。我不是个人从C＃调用JS的粉丝。

You need to use RegisterStartupScript. You just registered the block but nothing is calling that code. If you register it as a startup that means it will run when the page loads. However, I like the idea of a label much better. I am not a fan of calling JS from C#, personally.

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