Question

当我单击数据库中的保存按钮数据存储时。使用f5数据刷新时保存两次。我使用了更新面板，页面response.redirect（“samepage.aspx”）但没有用 aspx代码

<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="AddCust.aspx.cs" Inherits="AddCust" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="Main" Runat="Server">
    <asp:ScriptManager ID="ScriptManager1" runat="server">
    </asp:ScriptManager>
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
<div>
<div>
    <asp:TextBox ID="txtCustomername" runat="server"  >
    </asp:TextBox>
    <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="Enter The name" ControlToValidate="txtCustomername" ></asp:RequiredFieldValidator> 
    <asp:DropDownList ID="ddlcustomer" runat="server" 
        onselectedindexchanged="ddlcustomer_SelectedIndexChanged">
    </asp:DropDownList>
        </div>

aspx代码

asxcs代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;

using System.Web.UI.WebControls;
using odonovanTableAdapters;

public partial class AddCust : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        customerdropdown();

    }

码

public void ButtonSave_Click(object sender, EventArgs e)
{
    // ButtonSave.Attributes.Add("onclick", "return validate()");
    string name = txtCustomername.Text;

    string company = txtCompany.Text;
if (company == "")
{
    company = "0";
}
string address = txtaddress.Text;
if (address == "")
{
    address = "0";
}

long phonenumber = Convert.ToInt64(txtPhonenumber.Text);

string otherdetails = txtOtherDetails.Text;
if (otherdetails == "")
{
    otherdetails = "0";
}

码

tblCustomerdetailsTableAdapter tadaptor = new tblCustomerdetailsTableAdapter();
tadaptor.Insert(name, company, address, phonenumber, otherdetails);
//  Response.Write("<script>alert('saved successfully')</script>");

}

码

   protected void customerdropdown()
        {
            //fill broker ddl
            ddlcustomer.DataSource = DropDowns.ddlcustomers();
            ddlcustomer.DataValueField = "CustomerName";
            ddlcustomer.DataTextField = "CustomerName";
            ddlcustomer.DataBind();
            ddlcustomer.Items.Insert(0, "-- Select --");
        }

码

    protected void ddlcustomer_SelectedIndexChanged(object sender, EventArgs e)
    {     
        string customername = ddlcustomer.SelectedValue;
        spddlcustselectedvalueTableAdapter cadaptor = new spddlcustselectedvalueTableAdapter();
        odonovan.spddlcustselectedvalueDataTable ctable = cadaptor.GetData(customername);
        txtCustomername.Text = ctable.Rows[0][1].ToString();


    }
}

Answer 1

一旦成功保存记录，您就可以简单地将用户重定向到同一页面，以防止再次重复相同的操作（插入）。

在Querystring中传递一些令牌，以便您可以向用户显示成功消息。

当我单击数据库中的保存按钮数据存储时。使用f5数据刷新时保存两次

1 个答案: