C# - Protecting Variable Inside Of Markup : Hyperlink Navigation Property
Mar 2, 2011
I have an asp.net repeater control with a series of asp:hyperlink's
<asp:HyperLink runat="server" ID="name" NavigationUrl="~/Pages/display.aspx?fileid={0}&user={1}" />
and then on the OnItemDataBound method:
fullname.NavigationUrl=string.Format(name.NavigationUrl, user.fileid, user.userid);
So that gives me a series of URLs in the repeater:
[URL]
OK, so with a simple proxy tool someone can replace either of the parameters with some OTHER number to get access to what they shouldn't see.
server-side validation and authentication aside, is there a better method other than passing parameters when trying to create a dynamic URL within a repeater?
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Mar 9, 2010
I'm new to ASP.NET and can't figure out how to accomplish this...My code (that needs fixing):
<asp:HyperLink runat="server"
NavigateUrl="~/EditReport.aspx?featureId=<%= featureId %>" />
featureId gets defined as an integer in the backing code. I want href's like...
/EditReport.aspx?featureId=2224
...but instead I am getting...
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Jul 12, 2010
I have repeater in which I have 2 hyperlink in the footer of the repeater and I want that the hyperlink can navigate from the page_load
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Jan 30, 2011
i get a list of objects from the Entity Framework data context.
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Dec 31, 2010
private ListDictionary parameters;
public ListDictionary Parameters
{
get
{
if (parameters == null) parameters = new ListDictionary();
return parameters;
}
set
{
if (parameters == null) parameters = new ListDictionary();
parameters = value;
}
}
can i set such property in the markup of ASP.NET page? and how?
i mean something like <uc1:CustomControl Parameters="?"
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Oct 26, 2010
I am using an asp.net/c# datalist.
<asp:DataList ID="EquipmentList" RepeatColumns="5".....
I have the following line inside the <ItemTemplate> tag:
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In my code behind I have a NameValueCollection variable that contains all strings:
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but for now what do I write inside the tag if lets say i HAVE to bind to a NameValueCollection variable like in my case above. It has no properties or columns so I cannot write anything like Eval("propertyname") which is the answer that most here gave me. It is just like I am binding it to an array of strings. So what do I write now?
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Jul 26, 2011
I have a panel which is of a fixed size and in the panel I have a hyperlink. How can I make it so the user can click anywhere in the panel to activate the hyperlink click?
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Sep 3, 2010
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Feb 2, 2010
I've seen various controls in ASP.NET with "collections" of objects, which you can use markup to define. For example:
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<asp
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Feb 25, 2010
I have a CheckBoxList in my page, with the DataTextField and DataValueField attributes set, is there an attribute that I can use to specify a property that indicates if it should be checked?
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May 19, 2010
I have an ASCX that inherits from a WebControl that has a 'CustomConfiguration' property of type CollectionConfigurationItem. This configuration gets set elsewhere in the code, so by the time it gets to the ASCX it is set up to how I wish to use the data. At this point I'd like to render out another control using this configuration, like so:
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How can I set this custom-class-typed property from the markup or, failing that what's the second-best method of getting this to work?
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Sep 8, 2010
Is it possible to use a session variable in the markup aspx page ?
Cause I have a gridview that use an sqldatasource and in the UpdateCommand I want to include a the session variable : session("username").
Ex :
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This give me an error :
Server tags cannot contain <% .... %> constructs.
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Feb 2, 2011
I use EF 4 and C #.
I need populate a Pure Junction Table (containing only FK to other tables) when an EntityDataSource _Inserted event is raised.
I have 3 Tables in my Database:
[code]....
Here a useful resource:
But I am not able to implment it:
[code]....
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Mar 4, 2010
I have two Entity classes: Order and OrderItem. Order contains a navigation property OrderItemSet of type
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On an aspx page is a FormView bound to this EntityDataSource:
[code]....
When I run the application I get an exception pointing to the line DataSource='<%# Eval("OrderItemSet")%>' in markup and telling me:
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What is wrong here?
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Feb 28, 2011
I'm using EntityDataSource to retrieve my items, and i want to get the items for a particular region. (items and regions has a many to many relationship, thus item has a regions navigation property). and I'm using "IN" to filter the items. tried several combinations and it kept on throwing various errors. how can i get this sorted out:
Below is My DataSource:
[code]....
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Apr 22, 2010
I have a question, much liket this unanswered one. I'm trying to work with the entity framework, and having a tough time getting my foreign tables to update. I have something basically like this in the DB:
Incident (table):
-ID
-other fields
Responses (table):
-FK:Incident.ID
-other fields
And and entities that match:
Incident (entity)
-ID
-Other fields
-Responses (EntityCollection of Responses via navigation property)
Each Incident can have 0 or more responses.
In my Webpage, I have a form to allow the user to enter all the details of an Incident, including a list of responses. I can add everything to the database when a new Incident is created, however I'm having difficulty with editing the Incident.
When the page loads for edit, I populate the form and then store the responses in the viewstate. When the user changes the list of responses (adds one, deletes one or edits one). I store this back into the viewstate. Then when the user clicks the save button, I'd like to save the changes to the Incident and the Responses back to the DB. I cannot figure out how to get the responses from the detached viewstate into the Incident object so that they can be updated together.
Currently when the user clicks save, I'm getting the Incident to edit from the db, making changes to the Incident's fields and then saving it back to the DB. However I can't figure out how to have the detached list of responses from the viewstate attach to the Incident. I have tried the following without success:
Clearning the Incident.Responses collection and adding the ones from the viewstate back in:
Incident.Responses.Clear()
for each objResponse in Viewstate("Responses")
Incident.Responses.add(objResponse)
next
Creating an EntityCollection from my list and then assiging that to the Incident.Responses
Incident.Responses = EntityCollectionFromViewstateList
Iterating through the responses in Incident.Response and assigning the corresponding object from viewstate:
for each ObjResponse in Incident.Responses
objResponse = objCorrespondingModifedResonseFromViewState
Next
These all fail, I'd like to be able to merge the changes into the Inicdent object so that when the BLL calls SaveChanges on the changes to both the Incident and Responses will happen at the same time.
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Dec 29, 2010
I'm new to custom server controls and I'm hoping to use them to build various 'modules' for different sites I build to cut down on duplicate code.I'm familiar with custom user controls in which I can create an .ascx & .ascx.vb file which can then be imported into an .aspx page and used freely.However, with custom server controls I cannot find a way of using markup/html code. Is this possible at all or must all code be created programmatically?
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Sep 28, 2010
In an MVC view, I'm looking for a way to determine if a parent entity's collection of child entities is empty, so I can decide if I need to call a RenderPartial() or not.
For a one-to-one I've been using the following:
<% if (Model.Book.GenreReference.EntityKey != null) %>
{.....}
but I'm unsure how to do it in a one-to-many scenario, or if it can even be done without the use of Include() or Load().
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Jan 21, 2010
I created a UserControl and added a public DateTime property. I want to set this property in Markup (ie. <cc1:MyControl runat="server" id="MyControl1" DateTimeProp="1/1/2010" /> ) however I live in a place with a dd/mm/yyyy date format so it complains if I set something like "20/1/2010". Is there a way to set markup in my local datetime format or do I have to conform to "mm/dd/yyyy"?
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Aug 3, 2010
I'm sure I've done this before, but can't remember the syntax. How do I include a session variable in nagivateUrl in a hyperlink?
I've tried this:
<asp:HyperLink ID="lnkMyLink" runat="server" Text="My Link"
NavigateUrl='<%# "http://absoluteURL.org?param=" +
Session["myParameterValue"].ToString()%>'></asp:HyperLink>
and this:
<asp:HyperLink ID="lnkMyLink" runat="server" Text="My Link"
NavigateUrl='<%# String.Format("http://absoluteURL.org?param={0}",
Session["myParameterValue"].ToString()) %>'></asp:HyperLink>
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Aug 27, 2010
<asp:hyperlinkfield
datatextfield="fldfsl"
datanavigateurlfields="fldfsl"
datanavigateurlformatstring="website1.aspx?para1=dtersaga"
/>
that works like predicted when i declare the variable for para1 but i need it to read the fldfsl and pull that and put it behind para1= like this (but does not work)
<asp:hyperlinkfield
datatextfield="fldfsl"
datanavigateurlfields="fldfsl"
datanavigateurlformatstring="website1.aspx?para1=fldfsl"
/>
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Mar 22, 2010
I have a hyperlink column in a datagrid that uses DataNavigateUrlFormatString to open a popup window via javascript. I am trying to get two variables from a sql to show in the query string for the popup window. I am able to pass the sessionstart date which is ={0} but the other those two variables in the javascript I am not sure how to pass. The two are school_id and program_id in the select statement below:
strsql = "select count(z.iIndividualid) as enrolled,session_id,school_id as SchoolId,program_id as ProgramId,convert(nvarchar(10),session_start_date,101) as SessionStartDate, session_class_size as SessionClassSize from dbo.cnSchoolProgramSessions cn with
(nolock) left join customerproductdetail cpd on cn.session_start_date = cpd.dtdate1 left join customerproduct cp on cpd.iproductid=cp.iproductid and cp.iSiteId = cpd.iSiteId and cpd.tiRecordStatus = cp.tiRecordStatus left join individual z on z.iIndividualId
= cp.iOwnerId And z.tiRecordStatus = cp.tiRecordStatus where record_status = 1 and school_id = '" & iSchool & "' and program_id = '" & iProgram & "' group by session_id, school_id, program_id,session_start_date,session_class_size"
[Code]....
What do I need to pass in the hyperlink column to get the proper? Hopefully this makes sense to someone
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Sep 4, 2010
I have 10 hyperlink controls. Depending on which hyperlink is pressed I want to pass a value to the target page. I think the easiest way would be to pass the value using URL of the hyperlink controls. Something like <asp:HyperLink ID="HyperLink1" NavigateUrl="~/News.aspx?id=>. I can pass just a value, but I want to pass a value from a variable.
<asp:HyperLink ID="HyperLink1" runat="server"
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Dec 10, 2012
have been using hyperlink field and bind it using eval
NavigateUrl='Test.aspx?cid=<%# Eval("cat_id") %>' but it is not taking eval value.it is showing eval in link
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Aug 29, 2010
Is there a way to do something like this:
<asp:HyperLink id="MyLink"
NavigateUrl="../mypage.aspx?id=<%= pageid %>"
runat="server">My Page</asp:HyperLink>
... except in a way that works?
I want to do this inline in a normal HyperLink control that is not databound.
Edit:
Got some good answers, but what I'm looking for is how to do this specifically in a normal HyperLink (not in a DataGrid/GridView) and inline (not via a function call or code behind).
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