Web Forms :: Usercontrol Which Needs To Work Slightly Differently According To The Attributes Of Its Owning Page?

May 10, 2010

I have a usercontrol which needs to work slightly differently according to the attributes of its owning page.Is there a way to determine the owning page from within the user control?

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I'm calling an action from another controller using this code


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I have a bunch of events with their location being pulled from the db and I am doing the following:

List<Place> placeList = new List<Place>();
foreach (var item in eventsList)
bool coordinateExist= placeList.Where(x => x.latitude == item.Latitude && x.longitude == item.Longitude).Count()>0;
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I have a slight issue though. If two locations have the exact same latitude and longitude I want to offset the latitude by the slightest amount (equiv to a few meters maybe?), and then add it to placeList. Hence I will have a list full of unique coordinates.

how can i achieve this nicely? The above works but not nice IMO

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I have the following textbox with validation:

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If I click on a button on this page (CausesValidation is set to true) then the control validates properly.
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CollapsiblePanelExtender Doesn't Work With UserControl?

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Iam trying to use a UserControl named CheckBoxControl as value for the ExpandControlID/CollapseControlID attributes of the CollapsiblePanelExtender. It works fine when I use a normal CheckBox instead.

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When I run the site, most ajax controls on my site disappear and I get following errors in firefox script error console:

Fehler: Sys.InvalidOperationException: Handler was not added through the Sys.UI.DomEvent.addHandler method.
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Parameter name: CollapseControlID

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Web Forms :: Apply Certain Attributes On Page Load?

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I want to open a webpage without menubar, scroll bar


something like this on page load

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its seems it is not working properly

Remember i want this on page load it self not from other pages.

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I often use Placeholder control to dynamic load the UserControl. However there is a problem when i use, AJAX Control Toolkit not work on UserControl.

I would like for example a specific example as follows:

- This Project has 2 folder as "not use placeholder" and "Use placeholder". In folders have 2 file, default.aspx and uc1.ascx have the same content.
- In the folder "not use placeholder", I add CalendarExtender in uc1.ascx and run normally and in the folder "use placeholder" then CalendarExtender is not working.

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C# - How To Dynamically Retrieve All The Possible Attributes (variable Attributes) Values Of One Of The Xml Node

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I am using the following XML structure

<SERVER NAME="A3" ID="3" Parent="XYZ"></SERVER>
<SERVER NAME="A5" Parent="abc" value="10"></SERVER>

I am accessing this xml file by using LINQ to XML in asp.net by using C#. I am able to access all the attributes of an XML node by explicitly specifying the name of the attribute. I want to write query on this xml file which reads all the attribute values of the xml node (In our example the node is SERVER) dynamically means I want to write the query which can read the read the value of the attribute Name & ID from first node, only name from second row, Name, ID & Parent from the third row , Name & ID from the fourth row, Name, Parent & Value from the fifth row & only Name from the sixth row without modifying the existing code every time. Once I add one of the attribute ( for example if I add the attribute ID in the sixth row ) in the above xml file then I dont need to modify my LINQ to XML query. My query should dynamically fetch the total number of attributes & display their values. Is their any way to do this ?

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Web Forms :: Change Menu Button Attributes For Current Page

Sep 21, 2010

I have a menu in a user control with a sql database datasource. From what I have read online, the staticselectedstyle will only work if the menu control has a datasourceid defined. Here's what I have so far:

<asp:Menu ID="mnuMoESP" runat="server" Orientation="Horizontal"
ForeColor="White" BackColor="Transparent" Height="30px" Font-Bold="True"
Font-Size="Medium" Font-Names="Arial"
StaticMenuItemStyle-ItemSpacing="0" style="text-align:center" >
<StaticSelectedStyle BackColor="White" ForeColor="#402000"/>
<StaticMenuItemStyle BackColor="#5a630c" BorderColor="White"
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<StaticHoverStyle BackColor="#402000" />
<%# Eval("Text") %>
and code behind:
private void PopulateMenu()
mnuMoESP.Orientation = Orientation.Horizontal;
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DataTable dtmenu;
dtmenu = dsmenu.Tables[0];
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MenuItem categoryItem = new MenuItem((string)theRow["page_menu_parent"]);
categoryItem.NavigateUrl = GetNavUrl(theRow["page_path"], theRow["page_name"]);

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Web Forms :: Change The Attributes Of A Control In A Masterpage From A Content Page?

Apr 8, 2010

Using VS 2010 RC, VB, I have a label on a masterpage that is hidden. I want to make it visible from a content page when needed, and have the text change on the label as well from the master page.

I am using the following to access the label, but the text and other properties don't change for some reason.

Dim lblErrorMessage As Label lblErrorMessage = CType(Master.FindControl("lblErrorMessage1"), Label)
lblErrorMessage.Style.Add("display", "inline")
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Web Forms :: Dynamically Change Attributes - Add A Class To The Div If The Page Above Is Clicked Too

Feb 5, 2010

I have a menu generated by my cms:

<li><a href='default.aspx?pageid=2' id='link2'>rrr</a></li>
<div runat='server' id='menu2'>
<a href='default.aspx?subpageid=8'>rrr</a>
<a href='default.aspx?subpageid=9&siteid='>rrr</a>
<a href='default.aspx?subpageid=10&siteid='>rrr</a>
<a href='default.aspx?subpageid=11&siteid='>rrr</a>
<li><a href='default.aspx?pageid=3' id='link3'>Your Services</a></li>
<li><a href='default.aspx?pageid=4' id='link4'>rrrrrr</a></li>
<div runat='server' id='menu4'><a href='default.aspx?subpageid=1'>Single Equality Scheme</a>
<a href='default.aspx?subpageid=2&siteid='>Diversity Strands</a>
<a href='default.aspx?subpageid=3&siteid='>Equality Impact Assessments</a>
<a href='default.aspx?subpageid=4&siteid='>Quality and Safety Committee</a>
<li><a href='default.aspx?pageid=9' id='link9'>Contact Us</a></li>

I would like to change the link that has been clicked, to class="active". I would like to add a class to the div if the page above is clicked too.

If (Len(Request.QueryString("pageid")) <> 0 and Request.QueryString("pageid") = 4) Then
menu & Request.QueryString("pageid") & .Attributes.Add("class", "active")
link & Request.QueryString("pageid") & .Attributes.Add("class", "activelink")
end if

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I have a UserControl that is Added dynamicatlly into the page using UpdatePanel. That user control has an extender that does not work.

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If have the following web.config:

<authentication mode="Forms">
<forms name="MembershipCookie"

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I've got a details view control, default set to Insert which I've added file upload controls. I've used a button to begin the upload process and add the other data to the database. The weird thing is that if I use FireFox to enter the data and upload the files, everything works fine but it works slightly differently in IE8. The difference is that when I browse for a file in FireFox, upload it and store the file name, it returns just the file name e.g. myPic.jpg. However, when I upload with IE8 it stores the entire route to the file e.g. C:/Users/Users/Site/myPic.jpg Why would a browser treat these things differently? And, is there a way to fix it to work on both browsers?

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I was adding ContentPlaceHolder by dragging it from the Toolbox to a master page. Depending on the spot where it is inserted, the mark up generated is different:


Is the control name ContentPlaceHolder or contentplaceholder?

When I drag ContentPlaceHolder2 to the bottom of the page, after </html>, it stays unchanged for a while. Then when I formatted it (Ctrl-K, Ctrl-H), the control became contentplaceholder!!

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I have used Adding Custom Property to Page Directive in ASP.Net 2.0 as a pointer.

I would like to have a attribute which will give dev an option to select value from list. Something similar to EnableSessionState attribute. I do understand I need to define an enum for the values. But I cannot understand how to make it available during the design time.

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How To Programatically Add Attributes To The HTML Tag In Page Object

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I need to add some attributes [URL] to the tag in an ASP.NET Page object. Note: I cannot do this in a declarative manner and have to use the server side object model to do it.

To add some additional information:

I need to do this within the ASP.NET Page rendering life cycle.

I need to add the attribute to the root element in the page.

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