Using URL to populate Text Box ASP.Net

Question

I have made a ASP.net (aspx) website but need help to populate the textbox using the URL so I can send the URL to someone else and when they click/open the link the textbox is already filled out.

<asp:TextBox ID="txtMessages" runat="server" Width="300px"></asp:TextBox>

        string strMessage = txtMessages.Text;

Something like this -

http://localhost/TextInput.aspx?txtMessages=HelloWorld

So when the link is pressed the txtMessages textbox already has HelloWorld inserted into it.

I think the URL format would be something like that but it doesn't work.

have a look on dotnetperls.com/querystring will slove your issue. — Rojalin Sahoo
– Rojalin Sahoo, Commented Mar 22, 2016 at 11:04

Faizaan Nawaz · Accepted Answer · 2016-03-22 15:54:01Z

1

Do you mean you want to read the URL and then populate the Text box with whatever is in the URL?

If so try:

String Txtmessage = Request.QueryString["txtMessages"];

Then use Txtmessage to populate your textbox

edited Mar 22, 2016 at 15:54

answered Mar 22, 2016 at 10:27

Faizaan Nawaz

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2 Comments

user6097989 Over a year ago

Thanks for all the answers but your 1 line worked fine. however it is square brackets not normal ones.

Faizaan Nawaz Over a year ago

Oh my bad, I've been working with vb.net a lot recently - That explains the normal brackets.. I'll update the answer.

Kᴀτᴢ · Accepted Answer · 2016-03-22 10:30:25Z

1

Create a hyperlink on the page with your textbox:

HyperLink hl = new HyperLink();
hl.NavigateUrl = "yoursite.aspx?txtMessages=" + yourtextbox.Text;

on the page yoursite.aspx get the value on Page_Load:

 string txtMessage = Page.Request.QueryString.ToString();
 txtMessage = txtMessage.Replace("txtMessages=", "");

You can combine more QueryString like:

 "yoursite.aspx?action=change&txtMessages=" + yourtextbox.Text;

and grab it like:

string action = Page.Request.QueryString["action"].ToString();
string txtMessage = Page.Request.QueryString["txtMessages"].ToString();

edited Mar 22, 2016 at 10:30

answered Mar 22, 2016 at 10:24

Kᴀτᴢ

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