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5/14/2009 3:45 AM

	Revanth
10 posts

Passing Query String

Modified By Revanth on 5/15/2009 2:43:00 AM)

Hi !

I can able to pass a Query String from Form1.wgx to .aspx (asp.net) page and i can able to retrieve in .aspx(asp.net) page by using th intermediate page concept(http://visualwebgui.com/Developers/Forums/tabid/364/forumid/29/threadid/21194/scope/posts/Default.aspx)

But, i can not able to pass and retrieve the Query String from VWG Form to another VWG Form .

and also , i can not able to retrieve the Query String in VWG Form from aspx page.

I have tried so many scenarios as follows;

I am passing a Query String from asp.net application as follows:

str = "QSisFromASPNET";

Response.Redirect(

In debug mode i am getting the URL as http://localhost:2292/VWG_Validations/VWGForm2.aspx?TransactionUID=QSisFromASPNET for this URL

1.Context.HttpContext.Request.QueryString is coming as {vwginstance=}
2.Context.HttpContext.Request.QueryString.GetKey(0) coming as "vwginstance"

3.Context.HttpContext.Request.UrlReferrer is coming as {http://localhost:2292/VWG_Validations/Form2.wgx?vwginstance=&vwgstateless=0}

4.Context.HttpContext.Request.RawUrl is coming as "/VWG_Validations/Route/1.89.1/ie/en-US/Default/Init.Form2.wgx?vwginstance="

5.System.Web.HttpContext.Current.Request.Url is coming as {http://localhost:2292/VWG_Validations/Route/1.89.1/ie/en-US/Default/Init.Form2.wgx?vwginstance=}

6.System.Web.HttpContext.Current.Request.QueryString is coming as {vwginstance=}

but i am not getting "TransactionUID" as query string.

please help me in this issue.

Thanks in advance.

Revanth

"VWGForm2.aspx?TransactionUID=" + str + " ");

string

Revanth

5/15/2009 1:29 PM

	palli
14323 posts

Re: Passing Query String

Hi Revanth,

Your code didn't format property, but I think I get your point.

The trick here is to use the "post" prefix when calling your VWG apps. See this thread here for more explaination.

Palli

Páll Björnsson - Visual WebGui support team - Email: support@visualwebgui.com

5/20/2009 3:21 AM

Accepted Answer

	Revanth
10 posts

Re: Passing Query String

palli wrote

Hi Revanth,

Your code didn't format property, but I think I get your point.

The trick here is to use the "post" prefix when calling your VWG apps. See this thread here for more explaination.

Palli

I have gone through that Thread, but i didn't get the solution.I think my case is little different,

i want to pass a Query String from asp.net page to VWG Page.I ahve integrated the Form1 with asp.net.

In asp.net (Default.aspx)button click i have written the following code

string str="QueryStringFromASP.NET"

Response.Redirect("VWGForm2.aspx?TransactionUID="+ str + " ");

I have integrated Form1.wgx in VWGForm2.aspx as follows.

<%@ Register Assembly="Gizmox.WebGUI.Forms" Namespace="Gizmox.WebGUI.Forms.Hosts" TagPrefix="vwg" %>

<vwg:FormBox id="vwgvalidations" runat="Server" Form="Form1" Height="100px" Width="100px"></vwg:FormBox>

Now i want to retrieve the str from default.aspx into VWGApplication i.e.VWGForm2.aspx(Whis is been integrated with Form1.wgx).

I have tried all the scenarios which they have mentioned in that Thread, i am getting Object Reference not set to instance of an Obect error. In debug mode, under Quick Watch i am getting the QueryString Key as "vwginstance" instead of "TransactionUID".

Can you please help me and provide me the sample code.

Thanks in advance.

Revanth

5/24/2009 4:29 AM

	ori.cohen
4401 posts

Re: Passing Query String

Modified By ori.cohen on 5/24/2009 7:30:44 AM)

Hello,

I think that the better thing to go in this case is work with session variables.
You would initialize a session variable in the ASP.NET application, redirect to VWG and read the value of the variable in VWG.
Rememer to 'Remove' the session variables, the moment you no longer need them.

Please tell me if this solution would help.

Regards,

Ori Cohen
Support Manager, the Visual WebGui team

5/25/2009 11:27 PM

	Revanth
10 posts

Re: Passing Query String

Thanks to your great help. Using session it is working fine.

But, i think to pass a single variable, using Session and clearing session is a tedious task(ofcourse its not a difficult task).Is there any other way to pass and retrieve Querystrings to and from the VWG and ASP.NET applications.

Thanks in advance

Revanth

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