Asp.Net Query String

Question

I use Querystring to pass values ​​from one page to another. I am trying to implement encoding and decoding using Server.UrlDecode and urlEncode.

The query string returns a null value, but I can verify that the values ​​were sent to the URL.

Two pages:

QueryString.aspx

protected void Page_Load(object sender, EventArgs e)
{


}
protected void Button1_Click(object sender, EventArgs e)
{
    string id = "1";
    string name = "aaaa";

    string url = string.Format("QueryStringValuesTransfer.aspx?{0}&{1}", Server.UrlEncode(id), Server.UrlEncode(name));


    Response.Redirect(url);
}

;;

On another page:

QueryStringValuesTransfer.aspx:

 public partial class QueryStringValuesTransfer : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        string id1 = Server.UrlDecode(Request.QueryString["id"]);
        string name1 = Server.UrlDecode(Request.QueryString["name"]);
        Response.Write(id1 + name1);

    }

}

---

I get null values ​​in id1 and name1.

Any help please.

Answer 1

Change this line:

string url = string.Format("QueryStringValuesTransfer.aspx?id={0}&name={1}", Server.UrlEncode(id), Server.UrlEncode(name));

Answer 2

Now you only set the values ​​in the query line, you need to give them names so that you can capture them again:

string url = string.Format("QueryStringValuesTransfer.aspx?id={0}&name={1}", Server.UrlEncode(id), Server.UrlEncode(name));

Answer 3

, -

MyPage.aspx?id=xxx&name=yyy

, ...

Answer 4

string url = string.Format("QueryStringValuesTransfer.aspx?{0}&{1}", Server.UrlEncode(id), Server.UrlEncode(name));

:

string url = string.Format("QueryStringValuesTransfer.aspx?id={0}&name={1}", Server.UrlEncode(id), Server.UrlEncode(name));

Answer 5

. :

string url = string.Format("QueryStringValuesTransfer.aspx?id={0}&name={1}", Server.UrlEncode(id), Server.UrlEncode(name)); 

Answer 6

When creating the URL on the first page, you should do the following:

string url = string.Format("QueryStringValuesTransfer.aspx?id={0}&name={1}", Server.UrlEncode(id), Server.UrlEncode(name));

The query string consists of key-value pairs, you must provide the keys.