Web Forms :: Setting A Hidden Field From The Master Page?
Jul 13, 2010
From the master page of my ASP.NET site I need to set the value of a hidden field in every get and post request and then subsequently read it in the next request.The problem is that in the post request the code works fine but when the client sends a get request I am unable to read the value of the hidden field from teh Master Page. Is the hidden field the proper approach to this and if so how do I read the value set in the hidden field in the subsequent get request. If the hidden field is not the proper approach for this then what else should I use?
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Jun 1, 2010
I have a hidden field (hfUnsaved)in my child page . On keypress of my textbox i am setting the value into the hiddenfield using the following javascript function
[Code]....
On load: txtProject.Attributes.Add("onkeypress", "return Click('a');");
On button click i am removing the value from hidden field as follows:
[Code].....................
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Aug 18, 2010
Wondering if it is possible to access a master page's hidden field (ex. <Input Type="Hidden" ID="TestHiddenField" Value="testValue"/>) From a Content Page's C# Pack CS Page.If it is possible, How do I go about doing so? I have tried:
PreviousPage.Master.FindControl("[TestHiddenField]") but no .Value attribute and no luck in general.
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Aug 23, 2010
i am trying to set UniqueID for a hidden field control .its throwing me error The 'UniqueID' property is read-only and cannot be set. How to solve this issue ??my code
<asp:HiddenField ID="hSequence" runat="server" UniqueID="hSequence" />
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Mar 23, 2011
I have a custom user control which contains a asp hiddenfield object. The value of this hidden field is being set using javascript and I have verified that the value is being set properly. When a postback occurs the new value is not being saved and I cannot access it in my code.
I believe the problem is because the user control is not saved in viewstate and therefore the hidden field value is not saved accross postback. How can I make the hidden field save its value? I tried accessing it from the early page cycles and still no luck.
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Aug 2, 2010
I have a master page containing a tree and 3 dropdown lists. I am populating a context menu on right click of each node, and when clicked on any item of the context menu, it navigates to required pages.
My problem is after navigating to the required page, the selected values from the drop down lists and the selected node from the tree are getting cleared.
I can set the selected values for the dropdown lists by making some properties in master page.
But how do i maintain the selected node?
In my content page, i have got the valuepath of the right clicked node.
Or is there any other way than setting the properties in master page?
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Apr 8, 2010
So I have my login and password txtboxes in the master page header, When I click on login button it should hide those boxes and display something else.But everytime I navigate to another content page they get visible again. What it the best solution to keep them hidden while the user is logged in?
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Jun 2, 2010
hidden field value not persists on page refresh
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Jan 7, 2010
I have Gridview like this:
<asp:GridView ID="gvPartsSearchResult" runat ="server" CssClass="MRJ_TextGrid">
<Columns>
<asp:TemplateField HeaderText="Select">
<ItemTemplate>
<asp:RadioButton
ID="rdButton"
runat="server"
AutoPostBack ="true"
onclick="javascript:CheckOtherIsCheckedByGVIDMore()"/>
<asp:HiddenField
ID="hdnFileExtension"
runat="server"
Value ='<%#Bind("FILE_EXTENSION")%>'/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
I want to read the hidden field value when the user clicks on the radio button.
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Jan 27, 2011
(using Ajax in the backhand) I am trying to set a value for a hidden field, when an id is changed. I am getting object reference not set error.
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Is there anyway that i can set the value in the code-behind when using Ajax methods.
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Aug 16, 2010
In my ASP.NET main page I have one hidden field and and one button. When the user clicks the button I am showing the pop up (child page). I need to access a Hidden field while the pop up is loading. How could I access the Hidden field using c#?
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Jun 4, 2010
I have our site setup with 2 master pages.. one is for the general public and the other is for our admin section..
We are going to be updating the general pages to check the users job title to help customize the pages for them. Is it possible to add the code we are going to use to set the sessions to the master page of the general section and have it set the sessions. Or will i have to update each page individually with the logic and handle each page seperatly?
I have another post asking for help on setting the sessions, but once that is done, i'd like to know if adding that code to the master page will accomplish what i want, by just having it in one place and easier to maintain. Or will i have to add the code to each page i want to check the session values...
http://forums.asp.net/t/1558938.aspx ( this is where im asking for help with the sessions )
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Oct 10, 2010
I'm starting with ASP.NET MVC (1.0). I have a problem to resolve. I have developed a web applicaton (an application of articles like e-commerce) with a head (logo and menu). I have defined the head (logo and menu) in the Master page (site.master). Now, I must display the number of articles in the head in a field (like the number of articles in the virtual basket in the e-commerce). I can read the number of articles in the data base (in the controller), but i can't integrate it in the master page.
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Feb 11, 2011
we can create hidden field and post the entire page to another server to transfer data.
Is there anyway to perform similar task, without using a webpage?
For example:
I want to write a function, to self trigger after a specific time.
The self triggered function will form a hidden field message, and send to another server to query some information.
This function will not able to perform a brownser redirection.
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Jul 30, 2010
I am working on Scott Mitchell's ASP.Net in 24 hours book. I am running into what looks like a simple problem that is getting the best of me.
When a page loads, the UserId of the currently logged in user will be retrieved in the page Load event and placed into the Text value of a Label. But, when the page opens when I am running the app, I am getting an error in the lower left corner of the browser. When I open up the error message, I see this:
Webpage error details
Message: 'UserIDValue' is undefined
Line: 92
Char: 1
Code: 0
URI: http://localhost:51035/PhotoAlbum24hrs/PhotoAdmin/ManageCategories.aspx
Here is the web page's Load event (VB) code:
[Code]....
Here is line 92 and the surrounding lines from the page source when I run the app:
[Code]....
This matches what is in Scott's book. (Or else I have been looking at it too long and have missed something.)
If I make the UserId Label visible, I can see the logged in user's ID displayed on the page. So, what is going on here? Why am I getting this error?
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Aug 24, 2010
I want to have the background of my masterpage (the master page for all of my .aspx pages) have a sort of gradient. I imagine the only way I can do that is with an image. Or maybe even some other design, but I want to move away from the "solid color" background.
Is the easiest way to do this just to make an image and set that as the background? What image size should I make it, because some users could possibly have the normal aspect ratio, or maybe a widescreen? What should I make it like so that it looks good on [b]all[/b] computers?
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Aug 20, 2012
Looking for sample to access the hidden variable which is declared in the aspx page in the webmethod.
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May 7, 2015
I have a hidden value field on a page. On submit I post to a different page. On the page I've posted to I do a Request.Form but I do not get the value just a null value. This is the initial page
<div id="booking_content_wrapper">
<form id="mainForm" name="mainForm" runat="server" action="Cancellation.aspx">
<h2>
Paid Bookings</h2>
<table cellpadding="0" cellspacing="0" border="0" id="booking_table">
<tr>
[code].....
The javascript ViewCancellation function is set to a hyperlink in the code behind. The function will have a value like this,<a href="#" onclick=" View Cancellation(54666);return false;">cancel</a>.
string sResID = "";
protected void Page_Load(object sender, EventArgs e) {
HttpContext context = HttpContext.Current;
sResID = context.Request.Form["ResID"] != null ? context.Request.Form["ResID"] : "";
sResID = Regex.Replace(sResID, "/[^A-Z]d-/g", "");
context.Response.Write(sResID);
}
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Oct 3, 2013
My gridview has id in first column but I have hidden it . How do I send the gridview id to next page in query string.
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Jul 14, 2010
I have a master page and set it's back ground color in the body tag <body style="background-color:Red">. Now that is fine for the Master page. How do I set the back ground color of the content page to a different color?
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Dec 16, 2010
I've been out of the programming since last winter and I'm really rusty.
What I'm trying to do is set a master page programmatically. I goggled it and found this:
Csharp Code:
[code].....
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Jun 8, 2010
I have a web form that has 2 hidden fields , Formname & CreateDate ( essentialy a timestamp).
How do i populate them with values?
The formname is always the same & the createdate would be the current date & time.
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Oct 8, 2010
[Code]....
set the width of the datagrid and hidden the head?
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Dec 23, 2010
I am trying to set the value of a hidden field onblur. I add the blur attribute programatically on page load. When the user moves off the control the blur event fires the following javascript.
function getFocus()
{
var obj=document.activeElement;
alert(obj.id);
[code]...
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Jan 7, 2010
int no = int.Parse(hidden_field.Value.TrimStart()); it cause the error: input format was not in correct format. how to fix it?
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