C# - Change Panel "visible" Property On MasterPage From Child Pages?
Jun 11, 2010
I want to show some panel with a label, both located on a MasterPage, from inside it's child pages.. I already did the coding on the MasterPage:
public class MyMaster : MasterPage
{
public void ShowPanel(string pMessage)
{
labelInside.Text = pMessage;
myPanel.visible = true;
[code]...
This "works" ok, but it won't show nothing, since I need the page to be "refreshed" in an "ajax-way" like an UpdatePanel, which I can't use because the Trigger is in another page, right?I really need this to work.. even if you have another completely different way to do this,
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Similar Messages:
Feb 2, 2010
I have masterpage.master.vb where I have properties, such as;
[coe]....
Can anyone give me an idea how to go about this? I've tried searching but most articles talk in the context of web controls...
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Sep 29, 2010
I have a web page that I have a media control player on along with other controls in a table.It's a training video, so the controls are not visible.So the user can advance to the next web page,I thought I would have a button control inside an update panel with a time control so that the user had to watch the video and then the button control would appear after the video completed.I'm setting the button update panel to NOT visible and then turning it one when the time control elapses the same amount of time that the video runs.My problem is that when I set the visible property of the update panel to NOT visible it also makes the media player's panel NOT visible too.They are in two different panels.The medial player in a standard panel and the timer control connected witha separate panel that contains the button for the user to proceed. When I set the visible property to "true" the media player runs but the update panel with the button is visible also.
[Code]....
This is the code for the update panel and continue button that is in a separate table cell.I even split the table and so this is in a completely separate table but I still get the same behavior.
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Nov 29, 2010
How can one access public property of User Control In Master Page on child Pages.
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Aug 10, 2010
Hi I have a situation where I want to set the initial visible property of an Image to False and then in my code change it to True and then run a sub routine. My problem is that no matter how I order the code the sub runs before the image becomes visible. When I debug the image only becomes visible when it hits End Sub. Is there any way around this? Here's my code:
[Code]....
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Jun 23, 2010
In the main code, I just have a panel inside a DataList control. I'm attempting to adjust change the visibility to true or false in the code behind, but it's not having any affect on the panel.
[code]...
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Aug 2, 2010
Can anyone add a complete input about how to create Parent Property with multiple child properties or in short nested properties.
Example: Style tag: which has properties like font, color, display... etc? which accept objects and its value.
[code]....
As soon as Rainbow property is typed, user should get intellisense for list of number of colors. Then accordingly user can select list of those colors and assign a value to them.
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Oct 15, 2010
what's the DIV equivalent to this command?
((Panel)this.Page.Master.FindControl("Panel1")).Style.Add("display", "none");
This works great with a panel but I can't find the variation for doing the same thing with a DIV who's ID I know.
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Aug 23, 2010
I have a masterpage and inside that masterpage I have to check if a session is null or not. If the session is null, then there has to be a redirect to a login page.
That is no problem, but the problem is that the masterpage also have controls using the session and the child also uses the session so I get a nullreferenceexception.
I now have this:
[code]....
But the problem is that the controls on the masterpage are also called instead of redirecting immediatly.
So the main question:
How can I redirect immediatly, without loading further things. Because the page_init gets called as first method the redirect should solve my nullreferenceexception, but than I don't need to load all components etc.
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Feb 14, 2011
I have a some javascript code that I only want to run in one child page but it needs to be in the head tag to function correctly.
<script type='text/javascript' src=[URL] ></script>
<script type='text/javascript' src=[URL]></script>
<script type='text/javascript' src='lightview/lightview.js'></script>
<link rel="stylesheet" type="text/css" href="lightview/lightview.css" />
end code
Can anyone tell me how to do this? I cannot put it straight into the master page as it conflict with some other javascript code that I am running on a different page! And I cannot put it into the body of the child page because it does not function correctly.
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Feb 8, 2011
I've run into an instance where I'd like to change the Enctype of the form declared in my current view's master page. I'd like to make the change in order to support attachments via Request.Files.
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Jul 26, 2010
I have a main MasterPage that, as intended, forms the entire layout of my site. It has a bunch of methods common to all pages that use the mastertype, such as EnsureLoggedIn and such.
I want to move on to using nested masterpages to open up better layout options in some of the pages, but I am running into an issue. I get the layout of the nested masterpages fine, but I cannot access any methods in the parent masterpage.
I know my explanation seems a little sparse; I'm not exactly sure how to word what I'm looking for, heh. But here's a short example:
[Code]....
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Jan 5, 2010
The Get of the Visible property of a control recursively looks up the tree to indicate if the control will be rendered or not.
I need a way to see what the "local" visible value of a control is regardless of what its parent controls are set to. i.e. Whether it itself was set to true or false.
I have seen this question, How to get the "real" value of the Visible property? which uses Reflection to obtain the local state, however, I have not been able to get this working for WebControls. It's also a rather dirty method of getting the value.
I have come up with the following extension method. It works by removing the control from its parent, checking the property, then putting the control back where it found it.
public static bool LocalVisible(this Control control)
{
//Get a reference to the parent
Control parent = control.Parent;
//Find where in the parent the control is.
[Code]....
Is this an acceptable way of doing this? It works fine and I haven't come across any performance issues. It just seems extremely dirty and I have no doubt there could be instances in which it might fail (for example, when actually rendering).
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Feb 2, 2010
I have a ASP.NET C# 3.5 web application, where I am changing the masterpage & theme for certain pages that have ASP.NET controls. The problem is that when the masterpage/theme is changed, the ASP.NET ImageButtons on the child page cease to function altogether and show up as normal images. The html source for that page would show a disabled="disabled" field added to the ImageButtons at runtime. All other controls including ASP.NET Buttons work fine, only ImageButtons are effected. I've changed masterpages in files many times and have not come across this problem, probably because I rarely use ImageButtons. I'm beginning to think it may be a bug in .NET itself, but it could be code related. I've also executed a javascript function after
load to set the disabled field to "enabled", which has no effect on the ImageButton but the source confirms it is enabled. The MasterPages / Child Pages are relatively straight forward and I've tried many different combinations to get it working. I'm changing the masterpage & theme via a function like:
public static void ChangeMaster(System.Web.UI.Page page)
{
page.MasterPageFile = "~/GX.Master";
page.Theme = null;
}
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Oct 20, 2010
I created a sitemap with a treeview navigation in my aspx site. I am hoping someone can show me the code to put in a Masterpage so that when I expand a child node, all other nodes collapse, and when I expand another node, the previous expanded node collapses.
I have an example here of what I am trying to accomplish:
[URL]
I am using asp.net with VB.
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Sep 28, 2010
I'm embarrassed to ask this here because it's clearly been duplicated several times already on StackOverflow. I've read a lot of stuff including:
[URL]
I think I've done exactly what those article say, but it's not working for me.
Here's the top of my master page, named "MasterNoNews.master":
[code]....
In the first case, VS is telling me System.Web.Ui.MasterPage does not contain a definition for urrentUser. In the second case, VS says the type or namespace 'MasterNoNews' could not be found.
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May 4, 2010
Senario: Masterpage with a UserControl and a child ASPX page
In the past when using this senario I've used an Interface as a way to pass a value from the UserControl (embedded in a master page) to the masterpage code behind then consume that value in the child aspx page.
My question is now that asp.net 4 have arrived is this still a good way to achieve this or is there another or perhaps better way to do it? I've read somewhere that perhaps "delegates" is perhaps another route to take.
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Jan 18, 2011
I have the following div:
<div visible="false"
style="background-image:url('../Contents/Images/item-background-selected.png'); width:113px; height:58px; background-repeat: no-repeat; position: absolute;" />
<div>
It's still visible in spite of the visible property is set to false. but when I remove the background-image from the style it's hidden.
How can I hide it with keeping its background?
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Dec 18, 2010
The Visible property, as I understand it, helps to enable or disable the visibility of a control.
But what is its use in the case of the HiddenField control in ASP.NET?
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Mar 16, 2011
I'm working on a .NET 3.5 web application which shows/hides table rows contained in ascx files via an interface implementation (the controls containing the table implement the interface).So, given this markup in the .ascx:
<asp:Table id="MyTable" runat="server">
<asp:TableRow ID="Foo" runat="server">
<asp:TableCell ID="FooCell"
[code]...
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Jan 3, 2011
I have a masterpage and 1 childpage. In master page there is a listbox to present a data when a child page button is clicked. Listbox name is x1 for example.
When i am in childpage's button click event: i do not see that x1 named listbox due to namespace i guess.
For example masterpage name is masterpage1. When we are in childpage in button click event.
To try masterpage1 objecttemp = new masterpage1()
button1_Click() (child pages button click event)
masterpage.x1.items.add("button 1 clicked"); it is not being able to reachable too.
Also i encountered another issue related to that. When in masterpage for example masterpages click event. (its a login panel and when user clicks login, i had wanted to add a text information to listbox). In child pages when user clicks to login button which belongs masterpage top panel. It does not seem like working. It may be related to asp page master child life cycle and i do not know good. I wanted to able to add a string to listbox that belongs and come from masterpage in child page. Is there any way to use a datacontrol in childpage that belongs to masterpage.
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Dec 10, 2010
I need show/hide radiobutton control depends on boolean property
[Code]....
How to bind property visible?
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Jul 23, 2010
I have two panels on a page. Panel A, and then within Panel A is Panel B. If Panel A's visibility is False, shouldn't Panel B's visibility automatically be false because it's within Panel A?
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May 7, 2010
i have a panel(visible false) in a page and a user control. i have a button in a user control when i click that user control button then i need to make the panel visible in the page... (panel which is not in the user control)...
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Mar 29, 2010
I have a Panel that I'm setting visible=true explicitly. The debugger passes over that line and visible still evaluates to False on the next line. Obviously as a result, the Panel is not shown. How is this possible?
pnlValidate.Visible = true;
if (IsPostBack) return;
<asp:Panel ID="pnlValidate" runat="server">
[code]...
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