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?
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).
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?
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"
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I need show/hide radiobutton control depends on boolean property
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How to bind property visible?
I have my project set up with the virtual path "/MyVirtualPath", create the virtual directory in IIS 6 (W2003) and everything works fine. Then to work better with Google Analytics I change the virtual path "/myvirtualpath" and change all redicecciones and links to lowercase. also applies the class "lowercase route urls in aspnet mvc" and works perfectly.
The problem I had to modify the virtual directory in IIS, delete virtual path "/MyVirtualPath" and I created the new "/myvirtualpath", but in all cases I use tilde "~" or where I make a "RedirecToAction" (which should take "LowercaseRoute"), continues to maintain the virtual path "/MyVirtualPath". For example, if I see the HTML source code in the browser, see "/MyVirtualPath/Content/Site.css" instead of "/myvirtualpath/Content/Site.css. "
how to retrieve the selected row cell value if it is visible property is false in gridview?
View 1 RepliesI have a form with a ton of gridview controls on it. All of which are driven by a dropdown list control. When I select a value from the dropdown list control it populates the 5 gridview controls with data from the database.If there are no rows associated with the record from the dropdown list then I am going to set the visible property of all of the gridview cotrols to false.
I know how to set the property I just need to know where I would set it and what I would check.I can put my code in the selectedindexchanged event for the dropdownlist control but how do I check to see if there are no rows associated with that value? Maybe some sort of If gridview1_rowdatabound = 0 then...
I have a Sidemenu item in my ASP.NET application like below. There are two types of users in my application (Associates, Managers).When ever Associate Login then I have to disable Manager link. I am not able find visible property in codebehind since it is a HTML control. So need your support how to handle this
<ul>
<li><a href="Associate.aspx?val=Tests&index=0" id="lnkAssociates">Associate</a></li>
<li><a href="Manager.aspx id="lnkManager">Manager</a></li>
</ul>
"'ErrorMessageResourceType' property specified was not found."
{"The resource type 'XXXX.XXXXXX' does not have a publicly visible static property named '_RequiredXXXX'."}
I'm getting this error when my Create.aspx view is called and steps over that line:
<%=Html.TextBoxFor(Function(model) model.NO_DEMND, New With {.class = "txtbox", .disabled = True})%>
<%=Html.ValidationMessageFor(Function(model) model.NO_DEMND)%>
The message is there in the Ressources file, I think the problem is deeper than that but i'm having a hard time finding it. It pops this error very early on the ASPX page. It's the first model component it goes thru, i tried removing this one and it's the same message for all the model.xxxx components. I guess it's an error somewhere in the linkage. The .EDMX is correct and I get no build errors,
I have a problem that in DetailsView Edit Mode, if I go to edit fields, and set a fields visible property to false, when I update the record through the built in update options it sends a null value. If I change the field back to visible, it passes the data just fine.
Consequently, I tried just setting the field to Read Only = True, and got the same result even though the current values do show up in the edit mode, just read only.Is there anyway to hide the field but still allow it to pass the data it currently has "BACK" into the record.
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]....
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,
How can I trigger the click event of the button if the property Visible="false".
The event will be triggered after the window is close. I am using popup window to trigger click event of the button.
I have a database field called ImageLocation, I have the ImageUrl property bound to: Eval("ImageLocation", "{0}")I would like to bind the Visble property to false if the ImageLocation is null data. I can not figure out how to set the control properly, currently the Datalist shows me all the data and when the image location is null it shows me the name of the Hyperlink control which happens to be Hyperlink2.
View 2 RepliesI have a label1 in my aspx page, which property is set to visible = "False".
In the view source of the browser i cant able to find that label1.But using some other third party tool like "Burp Suite" etc ...
Can those label1 value could be seen or not using tools like "Burp Suite" etc ?
I have two Repeater controls, each hosted in a user control. Both user controls are contained in the same aspx page. Only one User Control is visible at any one time. The repeaters are comprised of checkboxes, and text boxes for user input.
The aspx page is configured with an Ajax ScriptManager; and contains several Ajax UpdatePanels. These UpdatePanels result in partial page post backs when text is changed in a textbox control in controls on the aspx page (this is not the behaviour for the Repeaters in the User Controls). Through use of several AsyncPostBackTriggers, various controls contained in the other UpdatePanels on the page have their content refreshed in response to the partial page post backs they are configured be notified about.
Depending on a radio button group selection, I set the visible property to true or false - as appropriate for the User control containing a repeater control. The Repeater control is then populated with data using databinding. All of this works.
However, when the Submit button is clicked, the Repeater control contains no data.
Given that I am not dynamically adding the Controls containing the Repeater controls (but using Visible true / false). I would have thought that the State of the fields and the data in the visible control would be preserved during the post back.
The User Controls are contained within the UpdatePanel that contains the Submit Button.
I have explicitly Enabled View state without any effect.
Am I correct in assuming that I should not have to do any explicit handling of data changes the user makes (via client side script and manipulation of an Data Structure Representing the Repeater Data); and the View State should maintain the data I need to access on the server when submitted?
I do not believe that it is the User Control visible state changes that are causing the issue because when the page is initially loaded on of the User controls is populated with dummy rows (so it displays).
I am suspicious that because the visible state of the controls is changed during partial page post back, that the Page View State ends up with no knowledge of the User Control and therefore cannot track its data (or changes).
I have a gridview that is bound to a SQL datasource and is filtered via FilterExpression,
the FilterExpressoin is using Contro Parameters in a for of textboxes.
I want a certain button to become visible (btnInsert.Visible=true) when the filterExpression returns no results.
what event should I use? what is the code for that?
I have five menu items that i have created as a user control and placed on the master page. Now i want one of the menu items to be visible only for particular user role and not visible for others. Here is what I did. Its not working though.
Dim DST As New DataSet
DST = dataObject.RunSPReturnDataSet("uspUserProfile '" & Session("UserID").ToString & "'", "mytbl")
'Dim US As New DataSet
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VWD 2008 Express. Vivual Basic.
I am trying to tie the Visible property of two textbox controls in a gridview to the value of a property. One I want to be visible is the property is true and one I want to be visible is the property is false. I have not been able to figure out how to express this. I have tried the following, with the non-working line in red.:
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The "Not IsInEditMode" does not work as desired. The property code in the VB code behind is:
[Code]....
What is the proper way to code the Visible= property?
I have a custom object that I'm throwing into the viewstate on an async postback. If I step through the code, I can put the object into the viewstate, then call the object from the viewstate and cast it with no problems. The code, when stepped through, has no issues whatsoever. However, when I go to FF and run it, I get "60|error|500|Error serializing value 'Case' of type 'Case.'" First thing that hits me as weird is that the value is being named as the type. It's not like value oCase (an instance of Case) of type Case. I've checked that all containing objects are set for serialization, compiled and rerun the web app.
View 4 RepliesI have a for which is built within an ASP.net usercontrol. This form is then used within a CMS as part of integration with a merchant gateway. The gateway requires that a number of hiddenfields be passed in which is fine in the main however one of these needs to be called Profile. The CMS I am using also defines a global variable called Profile and as such when I try and add a hidden field with this ID I get errors.
Is there a way of setting the 'name' property to Profile, and the ID to something different?
I'm using HiddenField in my Asp.net Page and store some value in it. but user can changes it's value via firefox Firebug in client side and enter an invalid value in it. so when user presses the submit button in the web page,invalid data will recieve in server side and invalid data will store in my database.
View 2 Replies<asp:HiddenField ID="mypostID" runat="server" Value=""/>
I wanted to ask if I could do something like:
<asp:HiddenField ID="mypostID" runat="server" Value="<% Response.Write(Session["ïd"])%>"/>
I cannot access the session from the user control code behind but if I put a Respose.Write on the page itself it shows the session value.