I use asp.net 4 c# ef4.I need to retrieve a nested ListBox control in a DetailView control.Because I need call many times the ListBox from my source code I was thinking to create a reusable Class to get the ListBox from the paretn control DetailView.Here my code:
protected DetailsView GetCreateRelatedCategories
{
get
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am using C# .net.. in my page am having nested repeater control.. in child repeater there is check box and a hidden ID. i want to store(here am get strucked) the ID of checked box in to my data base.. look at the below code..
HTML page....
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I'm having a problem trying to retrieve a dropdownlist value that is located within a nested repeater. Basically I'm trying to create a shopping cart that allows the user to select a shipping method and the shipping method is contained in the repeater. So my page structure looks something like this.
Gridview
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To me this should work, but the problem I'm facing is that there are no repeater items. The Items.Count property in the repeater is 0. I am not calling DataBind on the Gridview nor the Repeater before this code is reached (this code is the first thing that happens in my button click event) and my binding is done inside a !IsPostBack statement in my page load. I've made sure databinding is not occurring by setting breakpoints on the code that databinds both the gridview and repeater.
It seems to me like the nested repeater is losing it's viewstate or something on a postback. If that's the case, how can I get the selected value of that dropdown control inside a nested repeater?
I'm changing the CSS of my menu items during runtime to reflect which page is currently being viewed. It works fine. But, I have a nested master page that needs to change the CSS of the master page's items. How I can access the master page's menu items?
Here's the menu:
Code:
<div class="Menu" id="TopMenu" runat="server">
<ul>
<li><a href="../Default.aspx" runat="server" id="HomeButton" class="ActiveMenuButton">
<span>Home</span></a></li>
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I need to access the InventoryButton ID, but am unable to directly.
Is there a better, cleaner way to do this in ASP.NET 2.0?
An ASP.NET 2.0 page displays a datalist of records. Each record can have many dates, so the dates are in a nested gridview (I chose a gridview over a datalist here because we want to be able to delete a date and this is easier done in a gridview). The parent record can never be deleted.
The display works fine: the nested gridview gets its datasource during the parent datalist's OnItemDataBound event.
The problem: the nested gridview's delete function. The date gets deleted without a problem (handled in the OnRowDeleting event), but somehow the redisplay is untying all the other nested gridviews from their datasources. The delete does not appear to cause a page postback, so I don't know how the other nested gridviews are losing their datasources.
Is there a method to retrieve the file name of a class?
Specifically I would like to create a static method (CreateLink) in a base class (BasePage) to automatically return the path and filename of the page called.
I code in .C# ASP.NET
private const string TEMPLATE = "~/One.aspx";
public static HyperLink CreateLink()
{
HyperLink link = new HyperLink();
link.Text = "Click here";
link.NavigateUrl = String.Format(TEMPLATE);
return link;
}
Is it possible to avoid the use of TEMPLATE hardcoded variable? Is it possible to retrieve the One.aspx path from file name and location?
I have a C# class from which I would like to access a string contained within a TextBox. The TextBox is defined in a an .ascx file. What headers should I put in the class to be able to access this TextBox string?
View 2 RepliesI want to add a class and initialize a JS funcion behind my nested masterpage which is being dervised from an other master page. But when I add the following code in the PageLoade event in the code behined of my derived page then it give the folowing error
Exception Details:
System.NullReferenceException: Object reference not set to an instance of an object.
CODE-
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I am having .aspx page in which there exists one textBox , label and one button. When user enter some name in textbox and then click button. The event handler of button should call function in class file(.cs). The function in .cs should retrieve value of textBox control and set it for label there. And return back.
View 3 RepliesI want to retrieve private (implementation and other) methods of a class which implements an interface and also is derived from (inherits) a base class.
How can I achieve this using reflection? Is there anyother way to achieve this?
This is wat m tryin to do. I need to view these private methods and their contents, I don't want to invoke them.
Dim assembly As System.Reflection.Assembly
Dim assemblyName As String assemblyName = System.IO.Path.GetFullPath("xyz.dll")
assembly = System.Reflection.Assembly.LoadFile(assemblyName)
assembly.GetType("myClass").Getmethods(Bindings.NonPublic)
assembly.GetType("myClass").GetMethods(BindingFlags.NonPublic) isn't working
my solution currently has a website project and a class library project. I am attempting to access a session object from my class library but it is always returning null. In a settings class in my class library I store these values like so:
private static SessionProperty<WebUser> _currentUser = new SessionProperty<WebUser>("CurrentUser", delegate { return new WebUser(); });
public static WebUser CurrentUser
{
get { return _currentUser.Value; }
set { _currentUser.Value = value; }
}
I can access this just fine from any aspx page codebehind like so:
Settings.CurrentUser.User.ProviderUserKey.ToString();
However, if I attempt to do the same thing from a class in my classlibrary project it always returns null.
I'm trying to create a nested gridview, but I'm stuck at the editing/deleting part of the nested gridview. (Below is my code).The nested gridviews are filling out nice, I've set the DeleteParameter in the SQLDataSource, but I'm still getting this error when trying to delete a criteria: 'The Gridview 'gvCriteria' fired event RowDeleting which wasn't handled.'I've tried to create a method 'gvCriteria_RowDeleting', but that didn't seem to work out.Someone who can give me a piece of advice? Would it be possible to fill the gridview without using gvDomain_rowDataBound? Dries
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And the C# behind:
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Objective:
Have the MultiView1 display only if Frieght values exceed 15.50. If check box is checked, retreive the row values of the Gridview1 and Gridview2 to perform a task.There will be two check boxes. One will be conditionally hidden. Each check box has a different function.
Example: Send an email notifying this entry has been flagged. I am using Visual Studio 2005 with ASP.NET 2 due to availability of resource. I have checked out numerous sites without finding the specific answer.
For example:
[URL]
The following a simplified representative example of what I am trying to accoumplish. It uses the Northwind.mdb access database with just the Customers and Orders table.
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I haven't been able to find it if there is. Note - my issue is with a background-color, not a background image. Anyway, after having spent most of an entire day trying to fix this problem & unsuccessfully sourcing help on the web I thought now that I've managed to resolve my issue I'd post my solution here to keep someone from suffering the same headache.
Basically in my asp.net solution I have a div which has a mouseover class toggle bound to it. Within that div I have several divs which contain HtmlAnchors & Images (<div><a><img /></a><div>). These divs also have a class toggle bound to them. So, herein lies the issue:
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when skipping between the .Div2s, '.Div1' would suffer from a flicker which looked terrible. (This only happened in internet explorer!) The fix I finally came up with was to set a timeout on the class-toggle of .Div1
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This works for me in ie6-8! Phew! Time to get away from my computer.
In Nested Grid, we get a '+' sign. The problem is that '+' sign appears all times, even if there are no child records for that row. 1. Can we enable/disable OR Hide/Unhide '+' sign. depending on if child rows exits.2. OR alteast we can put some bgcolor indicating to user that this record do have child rows. Without any indicator user may feel quite annoying to click on '+' sign and nothing happens.
View 1 RepliesI need to know the best way to do the following. I have nested business level APIs (say level 1 & level 2). L1 needs to call L2. Both APIs use the database layer directly at their own nesting levels.
Now, in the database layer, I fetch the db connection from the pool each time as follows:
SqlConnection conn = new SqlConnection(connString);
conn.Open();
Is it proper to fetch the db connection each time on every DB level call as above? I know it will return a connection from the ASP.NET connection pool. However, wouldn't it be better to maintain the same DB connection throughout the nested calls (or throughout the current http request lifetime)? Will fetching a connection from the pool each time cause issues with nested TransactionScopes?
I have designed a collapsible nested gridview project using this article as a reference Collapsible Nested GridView with Paging using ASP.Net. I am trying to modify the code to collapse a gridview when another gridview is expanded so that only one nested gridview will be open at a time.
View 1 RepliesIs there any way to list all the class in my ASP.Net application(Including class in App_Code and Partial Class(aspx pages and asmx user controls)
View 3 Repliesaccessing a control inside the nested controls. Here is what i want to do. I click on the "add me" link inside the repeater and the ModalPopupExtende pops up with a textbox and the update linkbutton. I type something in the textbox and I click on the linkbutton update notes. My question is how do response.write the text i entered in the textbox?
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I have two repeaters (one nested in the other) with checkboxes for each. AutoPostback is set to true. ViewState is enabled. for the repeaters. The layout is similar to a treeview control.
I am having trouble retaining state for the child repeater's checkboxes when I check the parent repeater's checkboxes. How can I retain these child checkboxes as I click on the parent's.
I have a couple of controls that are set to runat="server", but are showing up as "not declared" in the vb code behind. They are not being setup in the designer.vb file at all, even if the design.vb is re-created. The only thing that I can think might be causing this is that the controls are inside of a custom control. The code looks something like this (it has been modified because of NDA):
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I have a label in gridview which is inside another gridview.How can i access the label control in codebehind?
View 2 RepliesI'm currently working with a repeater which has some number of drop down lists in it determined by how many items are databound to it. I wanted to add an event to each of these drop down lists in the scenario that a user changes the selected index.
Here is what I have for the repeater (Note that I am doing all of the databinding in the codebhind.):
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I am setting the OnTextChanged event here, however I did some experimenting with using the different events. I found that my method will not run when I am using the OnTextChanged or OnSelectedIndexChanged events. However, if I use some other events like OnLoad or OnPreRender, the method I have it set to actually runs. So in short, why is it that when I put this drop down list in the repeater only SOME of the events seem to work?
I am building a custom master page type control i.e. sort of like a datagrid but should be easier to add custom functionality into it. It's going great but part of the desired functionality is to have a paging control that switches on and off and part of that control would be a textbox that displays the current page number and on TextChanged redirects to the new page of the dataset. The problem I'm having is that technically the textbox which has its event fired is embedded in a control that is embedded in the control you actually put on the page sort of like
Page
|
Display Control
|
Paging Control
|
Textbox
Buried all the way down there the event is not firing. Worse the postback javascript isn't even being written onto the page (Nothing on the page posts back so far this is the only bit that really needs to). I've been trawling around Google for quite a while now and picked up that I need to implement INamingContainer (done) and I need to add the control into the page's control tree (is Pre_Init too late for that?
When's a good time to Add the Control to the page?) then the event should fire, apparently. But I've been unable to find an example of best practice on this there are quite a few near misses where people are having button angst but this isn't a button. So can anyone point me in the direction of getting a control embedded in a control embedded in a control added to a page to behave properly?
I have a form that contains a number of user controls (partial views, as in System.Web.Mvc.ViewUserControl), each with their own view models, and some of those user controls have nested user controls within them. I intended to reuse these user controls so I built up the form using a hierarchy in this way and pass the form a parent view model that contains all the user controls' view models within it.For example:
Parent Page (with form and ParentViewModel)
-->ChildControl1 (uses ViewModel1 which is passed from ParentViewModel.ViewModel1 property)
-->ChildControl2 (uses ViewModel2 which is passed from ParentViewModel.ViewModel2 property)
-->ChildControl3 (uses ViewModel3 which is passed from ViewModel2.ViewModel3 property)
My question is how do I retrieve the view data when the form is submitted? It seems the view data cannot bind to the ParentViewModel:public string Save(ParentViewModel viewData)...
as viewData.ViewModel1 and viewData.ViewModel2 are always null. Is there a way I can perform a custom binding?
Ultimately I need the form to be able to cope with a dynamic number of user controls and perform an asynchronous submission without postback. I'll cross those bridges when I come to them but I mention it now so any answer won't preclude this functionality.