Postbackurl from .htm to .aspx?

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Postbackurl from .htm to .aspx?

Last post 08-27-2009 3:56 AM by babymonsta. 41 replies.

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Postbackurl from .htm to .aspx?

08-26-2009, 9:14 PM

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179 point Member
babymonsta
Member since 08-13-2009, 10:42 AM
Singapore
Posts 573

Is there a way to enable a postback from a .htm page to a .aspx page? For instance values are inputted by a user into the .htm page and when the user clicks the button, I want it to trigger a .aspx page which will recieve the inputted data and carry out a certain function. I only know how to use the postbackurl between .aspx pages but is there a way to do the similar thing from a .htm to .aspx?

Jessie

* C# Please :)
* Newbie to ASP.NET, SQL. Please be kind to me :)
* postbacks & databind HATES me :(

Re: Postbackurl from .htm to .aspx?

08-26-2009, 10:36 PM

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94,406 point All-Star
vinz
Member since 10-05-2007, 11:47 AM
Cebu, PH
Posts 13,998

What about using Querystring to pass data between pages as demonstrated here: http://forums.asp.net/t/1242371.aspx

"Code,Beer and Music ~ my way of being a programmer"

Re: Postbackurl from .htm to .aspx?

08-26-2009, 11:27 PM

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179 point Member
babymonsta
Member since 08-13-2009, 10:42 AM
Singapore
Posts 573

I went through the code, but I didnt get some parts of it. What does this fragment of code mean?

function recordvalue(button)
{
var hiddentext=document.getElementById("Hidden1");

And my .htm page has a 'drop down list' with values in it. I know in .aspx I can do it easily using the dropdownlist.selected etc but to be done from retrieving it in .htm and posting it to .aspx, have any ideas?

Jessie

* C# Please :)
* Newbie to ASP.NET, SQL. Please be kind to me :)
* postbacks & databind HATES me :(

Re: Postbackurl from .htm to .aspx?

08-26-2009, 11:44 PM

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4,734 point Contributor
fayaz_3e
Member since 09-14-2007, 10:15 AM
Hyderabad
Posts 949

Hi,

The function is taking hidden field value and assigning to a varaible.

babymonsta:

function recordvalue(button)
{
var hiddentext=document.getElementById("Hidden1");

If you want DropDownList(since html guess it would be select) value you can do the same

unction recordvalue()
{
var ddl=document.getElementById("DropDownListID");
var mySelection = ddl.value;

//It gives your ddl selected value
//Do whatever you want here with this mySelection variable
form1.action="Default.aspx?value="+mySelection
}

Fayaz

Re: Postbackurl from .htm to .aspx?

08-26-2009, 11:53 PM

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179 point Member
babymonsta
Member since 08-13-2009, 10:42 AM
Singapore
Posts 573

Currently on my .htm page I have a couple of textboxes, a dropdownlist and a button. I tried to do a retrieve and post of the values inputted in the textbox however whenever I click my button, nothing seems to happen, so probably Ive done something wrong.

Do I have to write several different record value functions for each textbox and another for my dropdownlist?

The one I wrote for my textbox (trial and error) is

function recordvalue()

{

var nametext = document.getElementById("name");

form1.action="confirm.aspx?value="+nametext.value}

However when I click my button, nothing happens. My confirm.aspx page doesnt come to play.

I put this code in my .aspx.cs page

protected void Page_Load(object sender, EventArgs e)
    {
        string str = Request.QueryString["value"].ToString();
        Label1.Text = str;
    }

Did I miss something out?

Jessie

* C# Please :)
* Newbie to ASP.NET, SQL. Please be kind to me :)
* postbacks & databind HATES me :(

Re: Postbackurl from .htm to .aspx?

08-27-2009, 12:07 AM

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94,406 point All-Star
vinz
Member since 10-05-2007, 11:47 AM
Cebu, PH
Posts 13,998

Does the value of the querystring displayed in the url?

"Code,Beer and Music ~ my way of being a programmer"

Re: Postbackurl from .htm to .aspx?

08-27-2009, 12:10 AM

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179 point Member
babymonsta
Member since 08-13-2009, 10:42 AM
Singapore
Posts 573

vinz:
Does the value of the querystring displayed in the url?

Erm how do I do that?

Jessie

* C# Please :)
* Newbie to ASP.NET, SQL. Please be kind to me :)
* postbacks & databind HATES me :(

Re: Postbackurl from .htm to .aspx?

08-27-2009, 12:17 AM

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prashkumar22
Member since 03-31-2008, 4:01 AM
Chicago, IL
Posts 223

This might be another way of doing

//HTML Page

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
</head>
<body>
<form method="post" action="test.aspx">  
 <input id="Text1" name="test" type="text" />  
     <input id="Text2" name="test" type="text" />  
    <select id="Select1" name="test">
        <option>one</option>
        <option>two</option>
    </select>
     <input id="Submit1" type="submit" value="submit" />  
     </form>
</body>
</html>


//code-behind page of test.aspx

protected void Page_Load(object sender, EventArgs e)
    {
        String[] values = Request.Form.GetValues("test");
                  
         foreach (String val in values)  
         {              
             Response.Write(val + "<br/>");  
         } 
    }

Prashant

Re: Postbackurl from .htm to .aspx?

08-27-2009, 12:22 AM

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94,406 point All-Star
vinz
Member since 10-05-2007, 11:47 AM
Cebu, PH
Posts 13,998

babymonsta:
vinz:
Does the value of the querystring displayed in the url?

Erm how do I do that?

First be sure that you call the function recordvalue in your Button like:

<input id="Button1" type="button" value="1" onclick="recordvalue(this)" />

Then check the url displayed in the browser once it navigates to confirm.aspx. the url should have something like this http://localhost/WebSiteName/Confirm.aspx?value = thevalueyoupass

"Code,Beer and Music ~ my way of being a programmer"

Re: Postbackurl from .htm to .aspx?

08-27-2009, 12:53 AM

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179 point Member
babymonsta
Member since 08-13-2009, 10:42 AM
Singapore
Posts 573

I tried both ways, but somehow when I click the button, it doesnt even divert to confirm.aspx at all :(

Jessie

* C# Please :)
* Newbie to ASP.NET, SQL. Please be kind to me :)
* postbacks & databind HATES me :(

Re: Postbackurl from .htm to .aspx?

08-27-2009, 12:58 AM

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2,476 point Contributor
NihirPorecha
Member since 06-26-2009, 8:39 AM
Ahmedabad
Posts 460

prashkumar22:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
</head>
<body>
<form method="post" action="test.aspx">
<input id="Text1" name="test" type="text" />
     <input id="Text2" name="test" type="text" />
    <select id="Select1" name="test">
        <option>one</option>
        <option>two</option>
    </select>
     <input id="Submit1" type="submit" value="submit" />
     </form>
</body>
</html>


//code-behind page of test.aspx

protected void Page_Load(object sender, EventArgs e)
    {
        String[] values = Request.Form.GetValues("test");

         foreach (String val in values)
         {
             Response.Write(val + "<br/>");
         }
    }

Above will work perfectly for you.

Please Mark as answer if it helps you.

My blog

Re: Postbackurl from .htm to .aspx?

08-27-2009, 1:04 AM

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179 point Member
babymonsta
Member since 08-13-2009, 10:42 AM
Singapore
Posts 573

I cant tell if its working or not because right now it doesnt divert to the .aspx page when the button is clicked. And Im not sure why :(

Jessie

* C# Please :)
* Newbie to ASP.NET, SQL. Please be kind to me :)
* postbacks & databind HATES me :(

Re: Postbackurl from .htm to .aspx?

08-27-2009, 1:10 AM

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4,734 point Contributor
fayaz_3e
Member since 09-14-2007, 10:15 AM
Hyderabad
Posts 949

babymonsta:
function recordvalue()
{
var nametext = document.getElementById("name");
form1.action="confirm.aspx?value="+nametext.value}

Instead of form1.action

you can try this also

window.location="confirm.aspx?value="+nametext.value;

Fayaz

Re: Postbackurl from .htm to .aspx?

08-27-2009, 1:17 AM

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1,402 point Participant
prashkumar22
Member since 03-31-2008, 4:01 AM
Chicago, IL
Posts 223

You have to make sure that action property in the form tag is pointing to correct .aspx page and also its path. Try just by creating a new HTML and .aspx page if possible

Prashant

Re: Postbackurl from .htm to .aspx?

08-27-2009, 1:21 AM

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179 point Member
babymonsta
Member since 08-13-2009, 10:42 AM
Singapore
Posts 573

fayaz_3e:
Instead of form1.action
you can try this also
window.location="confirm.aspx?value="+nametext.value;

I tried this and my button finally worked, but I got this appear in my textbox.

~~[object HTMLInputElement]~~

When a name I inputted was supposed to appear.

It now says undefined

Jessie

* C# Please :)
* Newbie to ASP.NET, SQL. Please be kind to me :)
* postbacks & databind HATES me :(

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