Create form action as variable

Question

I have t following ASPX source :

  <form name="AddComment" action="ViewArticle.aspx?ArticleID=<%=ArticleID %>" method="post" runat="server">

The problem is that when I click submit I got this url

http://localhost:61175/WebSite1/ViewArticle.aspx?ArticleID=%3C%=ArticleID%20%%3E

But I want get this URL :

http://localhost:61175/WebSite1/ViewArticle.aspx?ArticleID=1

If I delete the "runat="server"" command it works fine, but can this form work with the variable and the runat server at the same time?

jbl · Accepted Answer · 2013-03-20 16:36:07Z

1

Maybe you can try setting the action just before the form markup like this (or in codebehind, at your choice)

 <%
     this.Form.Action = "ViewArticle.aspx?ArticleID=" + ArticleID.ToString();
 %>
 <form name="AddComment"  method="post" runat="server">

answered Mar 20, 2013 at 16:36

jbl

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3 Comments

Nave Tseva Over a year ago

How can I put the code in the codebehind page? When I do it I get an error

jbl Over a year ago

@NaveTseva works fine here, with the exact same line as first line of page_load. What is the error you get ?

jbl Over a year ago

@NaveTseva might be many reasons, because the form is not available at that moment ( in a usercontrol, added dynamically, with an ancestor or itself being Visible=false, ...)

nBalu · Accepted Answer · 2013-03-20 16:44:49Z

1

In server side controls you can't do such things as <%= ActionID %> you can only bind <%# ActionID %>.

The upper solution won't work, becouse the form is not that form. You have to give a control ID + name than setup the post url. If it's not an option you can dinamicly search for form item in the control tree, so dynamic ID-s can be handled.

answered Mar 20, 2013 at 16:44

nBalu

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1 Comment

jbl Over a year ago

Compared to other controls, Form has a special status : msdn.microsoft.com/en-us/library/system.web.ui.page.form.aspx

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