页面回发后显示标签

时间:2012-03-23 18:54:59

标签: c# asp.net

我有一个带有文本框和2个按钮'保存'和'取消'的表单。

保存 - 将数据存储到数据库并清除所有字段。 取消 - 清除所有字段。 (我通过对同一页面执行server.transfer来清除所有字段。)

我希望标签在单击“保存”按钮并清除表单后显示“已添加课程”。

我查看过View State和Session Variables但是还没有找到解决我问题的具体方法。非常感谢任何帮助或建议。

下面是我的aspx和代码背后的代码。感谢。

Admin_Course_Add.aspx

<asp:Content ID="Content3" ContentPlaceHolderID="rightNavigation" runat="server">

<script type="text/javascript">
`/`/JS for validations
  `enter code here`      $(document).ready(function () {
            $("#form1").validate({

                rules: { '<%=tbCourseName.UniqueID %>': { required: true, maxlength: 25 },
                    '<%=tbShortName.UniqueID %>': { maxlength: 10 },
                    '<%=tbPointScale.UniqueID %>': { required: true, digits: true },
                    '<%=tbDescription.UniqueID %>': { maxlength: 50 }
                },
                messages: {}
            });




            $("#imgBtn_A_add").click(function (evt) {
                // Validate the form and retain the result.
                var isValid = $("#form1").valid();

                // If the form didn't validate, prevent the
                //  form submission.

                // If the form didn't validate, prevent the
                //  form submission.
                if (!isValid)
                    evt.preventDefault();
            });

            $("#imgBtn_A_cancel").click(function () {
                $("#form1").validate().cancelSubmit = true;
                $("#form1").submit();
                return false;

                });


    </script>


    <div class="Admin_rightNavtop">


        <table style="margin: 0 auto">
            <tr>
                <td>
                    <asp:TextBox ID="tbCourseName" runat="server" class="tbSize_large"  />
                </td>
            </tr>
            <tr>
                <td>
                    <asp:TextBox ID="tbShortName" runat="server" class="tbSize_large" />
                </td>
            </tr>

        </table>
    </div>

    <center>
        <div class="Admin_action">
            <asp:ImageButton ID="imgBtn_A_add" ImageUrl="../Images/Add.png" runat="server" class="Admin_action_imgSize_small"
                OnClick="add_Click"  />
            <asp:ImageButton ID="imgBtn_A_cancel" ImageUrl="../Images/Cancel.png" OnClick="cancel_Click"
                 runat="server" class="Admin_action_imgSize_small"/>
        </div>
    </center>
</asp:Content>

Admin_Course_Add.aspx.cs(代码背后)

protected void Page_Load(object sender,EventArgs e)             {                 if(!Page.IsPostBack)                 {                     dbConnection dbConn = new dbConnection();                     DataTable dt = new DataTable();                     SqlConnection connection = new SqlConnection(“Data Source = VC-SQL2008; Integrated Security = True; database = CORP”);

                dt = Admin_Course_WebService.PopulateCourseLevel();

                ddlCourseLevel.DataSource = dt;
                ddlCourseLevel.DataTextField = "Name";
                ddlCourseLevel.DataValueField = "Id";
                ddlCourseLevel.DataBind();
            }


        }

    protected void add_Click(object sender, ImageClickEventArgs e)
    {

        DataTable dt = new DataTable();
        string name = tbCourseName.Text;
        string short_name = tbShortName.Text;

        int id = Convert.ToInt32(ddlCourseLevel.SelectedItem.Value);
        bool isDeleted = false;
        Admin_Course_WebService.AddCourse(name, short_name, graded, point_scale, id, description, isDeleted);

        Server.Transfer("Admin_Course_Add.aspx");


    }

    protected void cancel_Click(object sender, ImageClickEventArgs e)
    {
        Server.Transfer("Admin_Course_Add.aspx");
    }

1 个答案:

答案 0 :(得分:0)

首先为什么要通过ServerTransfer清除字段?

其次,你可以在QueryString中发送参数

例如:

 Server.Transfer("Admin_Course_Add.aspx?ClearParams=Yes");

并在页面加载中添加

if(Request["ClearParams"].ToString() == "Yes")
{
  Show My Lable
}