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how to pass a value from a database field or TextBox via <input value=> tag

Gary Taylor 0 Reputation points
2023-12-08T11:30:13.1366667+00:00

I want to use the <input> tag to pass a string to another site/app. I've already managed this with two other webpages but in both cases the value is taken from a fixed list of values from a radio-button list.

In this scenario I want to pass the content of the value-field from a database field or a textbox in the .aspx page.

Is there a simple way to achieve this as I have a limited amount of time to try to implement this.

For example, and I realise neither of these would work, <input id="total" value=objDatabaseTable.DatabaseTable_Total> or <input id="total" value=tbTotal.Text>

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  1. QiYou-MSFT 4,326 Reputation points Microsoft Vendor
    2023-12-15T09:08:00.6566667+00:00

    Hi @Gary Taylor

    First, you want to use the <input> tag to pass a string to another site/app. Do your requirements transfer the value from one project to another? For example, the input value of Project1/Webform1 .aspx is passed to the input of Project2/Webform2.aspx?

    Then I can provide you with two methods:

    1.Via Querystring

    Add "runat="server"" to make this control a server control.

     <input id="input1" runat="server" type="text" value="Test" />

    This way you can handle this control in aspx.cs.

    Next, we make the URL of the page to be sent and the value to be sent into a URL with QueryString for transmission.

    string url;
 url = "https://localhost:44394/WebForm2?value=" + input1.Value;
 Response.Redirect(url);

    Then we can get the QueryString via Request.QueryString.

    input1.Value = Request.QueryString["value"];

    URL1

    Here's the full code:

    Webapplication1/WebForm1.aspx

    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication1.WebForm1" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
               This is WebApplication1/WebForm1.aspx
            <input id="input1" runat="server" type="text"  />
            <asp:Button runat="server" ID="button1" OnClick="button1_Click" Text="Submit" />
        </div>
    </form>
</body>
</html>

    using System;
using System.Collections.Generic;
using System.Data.SqlTypes;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
           
        }

        protected void button1_Click(object sender, EventArgs e)
        {
            string url;
            url = "https://localhost:44394/WebForm2?value=" + input1.Value;
            Response.Redirect(url);
        }
    }
}

    Webapplication2/WebForm2.aspx

    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm2.aspx.cs" Inherits="WebApplication2.WebForm2" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            This is WebApplication2/WebForm2.aspx
            <input type="text" id="input1" runat="server" />
        </div>
    </form>
</body>
</html>


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

namespace WebApplication2
{
    public partial class WebForm2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            input1.Value = Request.QueryString["value"];
        }
    }
}

    2.But this method will cause the value to be leaked, and you can also do this by using the sqlcommand database operation method.

    Best regards,

    Qi You

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