Response.Redirect不是清除表单。为什么？ [英] Response.Redirect is not clearing form. Why?

问题描述

我有一个用户可以填写的表单。当用户单击提交按钮时，表单会弹出一条成功消息并重定向回相同的表单，但数据不会被清除。我做错了什么？



<前lang =c＃> 受保护 void Submit_Click（ object sender，EventArgs e）
{

SqlConnection con = new SqlConnection（System.Configuration.ConfigurationManager.ConnectionStrings [ HotConnectionString ]的ConnectionString）。
con.Open（）;

SqlCommand cmd = new SqlCommand（ 插入表格2013（INST_ID，UNITID，ASTUDENTS，ACOMPLETED，ATRANSFERS，BSTUDENTS，BCOMPLETED，BTRANSFERS，YEAR，DATE）值（@ INST_ID，@ UNITID，@ STUDPENTS，@ ACOMPLETED，@ ATRANSFERS，@ BSTUDENTS，@ BCOMPLETED， @BTRANSFERS，@ YEAR，@ DATE）插入表2014（INST_ID，UNITID，ASTUDENTS，ACOMPLETED，ATRANSFERS，BSTUDENTS，BCOMPLETED，BTRANSFERS，YEAR，DATE）值（@ INST_ID，@ UNITID，@ STUDPENTS，@ 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）;

cmd.ExecuteNonQuery（）;
con.Close（）;

if （Page.IsValid）
{
ScriptManager.RegisterStartupScript（ this ， this .GetType（）， script， alert（'您已成功提交群组'）;， true ）;
}
else
{
Response.Redirect（ Gradrate.aspx）;
}


}

解决方案

您只能重定向页面无效...



您的代码：

  if （Page.IsValid）
 {
 ScriptManager.RegisterStartupScript（ this ， this  .GetType（），  script，  alert（'您已成功提交同类群组'）;， true ） ; 
} 
  else  
 {
 Response.Redirect（  Gradrate.aspx）; 
} 

你应该写：

  if （Page.IsValid）
 {
 ScriptManager.RegisterStartupScript（ this ，此 .GetType（），  script，< span class =code-string>  alert（'您已成功提交同类群组'）;，真）; 
 
 Response.Redirect（  Gradrate.aspx）; 
} 

或

  if （Page.IsValid）
 {
 ScriptManager.RegisterStartupScript（ this ， this  .GetType（），  script，  alert（'您已成功提交同类群组'）;， true ）; 
} 
 
 Response.Redirect（  Gradrate.aspx ）; 

我已将其添加到代码中。

  if （Page.IsValid）
 {
 ScriptManager.RegisterStartupScript（ this  ， this  .GetType（），  script，  alert（'您已成功提交群组'）;，真）; 
} 
  else  
 {
 Response.Redirect（  Gradrate.aspx）; 
} 
 
 TextBoxUNITID.Text =  string  .Empty; 
 TextBoxTNUGSC.Text =  string  .Empty; 
 TextBoxTNUGSCD.Text =  string  .Empty; 
 TextBoxTTOUG.Text =  string  .Empty; 
 TextBoxTNGSC.Text =  string  .Empty; 
 TextBoxTNGSCD.Text =  string  .Empty; 
 TextBoxTTOG.Text =  string  .Empty; 
 
} 
 

I have a form that a user can fill out. When the user clicks the submit button the form pops up a success message and redirects back to the same form but the data is not cleared out. What did I do wrong?

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);

           cmd.ExecuteNonQuery();
           con.Close();

           if (Page.IsValid)
           {
               ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "alert('You Have Successfully Submitted the Cohort');", true);
           }
           else
           {
               Response.Redirect("Gradrate.aspx");
           }


       }

解决方案

You redirect only if page invalid...

Your code:

if (Page.IsValid)
{
  ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "alert('You Have Successfully Submitted the Cohort');", true);
}
else
{
  Response.Redirect("Gradrate.aspx");
}

You should write:

if (Page.IsValid)
{
  ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "alert('You Have Successfully Submitted the Cohort');", true);

  Response.Redirect("Gradrate.aspx");
}

or

if (Page.IsValid)
{
  ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "alert('You Have Successfully Submitted the Cohort');", true);
}

Response.Redirect("Gradrate.aspx");

I have added this to the code.

if (Page.IsValid)
           {
               ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "alert('You Have Successfully Submitted the Cohort');", true);
           }
           else
           {
               Response.Redirect("Gradrate.aspx");
           }

           TextBoxUNITID.Text = string.Empty;
           TextBoxTNUGSC.Text = string.Empty;
           TextBoxTNUGSCD.Text = string.Empty;
           TextBoxTTOUG.Text = string.Empty;
           TextBoxTNGSC.Text = string.Empty;
           TextBoxTNGSCD.Text = string.Empty;
           TextBoxTTOG.Text = string.Empty;

       }

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