Question

我有一个aspx页面...登录按钮我有一个点击事件。但是当我点击按钮时页面被重新加载。可能是错误。我无法理解。并且登录按钮位于表单标签中。 aspx页面上的登录代码： - ＆gt;

.cs文件上的代码

protected void Login_Click(object sender, EventArgs e)
    {
        DataTable dt = new DataTable();
        string q = "SELECT * FROM Instructor WHERE EmailId='" + TextBox10.Text + "'";
        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["dbstring"].ConnectionString);
        con.Open();
        SqlCommand cmd = new SqlCommand(q, con);
        SqlDataAdapter adp = new SqlDataAdapter(cmd);
        adp.Fill(dt);
        if (dt.Rows.Count == 1)
        {
            if (dt.Rows[0]["Password"].ToString() == TextBox2.Text)
            {
                Session["instructor"] = TextBox10.Text;
                Response.Redirect("InstructorHome.aspx");
            }
            else
            {  Label1. Visible = true;
                Label1.Text = "Password Incorrect";
            }
        }
        else
        {
            Label2. Visible = true;
            Label2.Text = "Username does not Exists";
           TextBox10.Text = "";
        }
        con.Close();
    }

              <h2>Log In</h2>
              <form id="LogIn" action="#">
                <div>
                  
                  <div  class="wrapper"> <asp:Label ID="Label10" runat="server" Text="Enter Your EmaiID" Font-Size="Medium" ForeColor="Black" Font-Names="Algerian" ></asp:Label>
                    <div class="bg">
                  <asp:TextBox ID="TextBox10" runat="server"  Font-Names="Comic Sans MS" Font-Size="Medium" ></asp:TextBox> 
                  <asp:CustomValidator ID="CustomValidator14" runat="server" ErrorMessage="Enter Valid Email ID" ControlToValidate="TextBox10" ValidateEmptyText="True" ClientValidationFunction="EmailValidator" ValidationGroup="fp"  Font-Size="Medium" ForeColor="Black" Font-Names="Algerian"></asp:CustomValidator><br />
                <asp:CustomValidator ID="CustomValidator15" runat="server" ErrorMessage="Cannot Be Empty" ControlToValidate="TextBox10" ValidateEmptyText="True" ClientValidationFunction="RequiredValidate" ValidationGroup="fp"  Font-Size="Medium" ForeColor="Black" Font-Names="Algerian"></asp:CustomValidator>
                    </div>
                  </div>
                  
                  <div  class="wrapper"><asp:Label ID="Label9" runat="server" Text="Password" Font-Size="Medium" ForeColor="Black" Font-Names="Algerian" ></asp:Label>
                    <div class="bg">
                  <asp:TextBox ID="TextBox2" TextMode="Password" runat="server"  Font-Names="Comic Sans MS" Font-Size="Medium"></asp:TextBox> &nbsp                  
                  <asp:Label ID="Label13" runat="server" Text=""  Font-Size="Medium" ForeColor="Black" Font-Names="Algerian"></asp:Label>  </div>
                  <asp:CustomValidator ID="CustomValidator13" runat="server" ErrorMessage="Cannot Be Empty" ControlToValidate="TextBox2" ValidateEmptyText="True" ClientValidationFunction="RequiredValidate" ValidationGroup="loginValidate"  Font-Size="Medium" ForeColor="Black" Font-Names="Algerian"></asp:CustomValidator><br />
                  </div>
                  
                  
  <asp:Button ID="Button2" class="button" runat="server" Text="Login" onclick="Login_Click"  validationgroup= "loginValidate" ></asp:Button>
  
 <asp:Button ID="Button3" class="button" runat="server" Text="Forgot Password" onclick="Forgot_click" ValidationGroup="fp"></asp:Button>
              
             
              </div>
               <asp:Label ID="Label1" runat="server" Text="Label" Visible="false"></asp:Label>
              <asp:Label ID="Label2" runat="server" Text="Label" Visible="false"></asp:Label>
              </form>

Answer 1

发布你的page_load代码，我怀疑你可能会在这里做点什么，如果是这样的话就把它包装好了。

if (!page.ispostback) {
    //your page load code here...
}

有关登录按钮错误的查询

1 个答案: