Ajax - Server Controls And Building HTML?
Jan 26, 2011
I render HTML returned from an ajax call and currently uses simple html controls and the string that is returned from the ajax call looks like this:
string s = "<tr><td><a href="#">MyLink</a></td></tr>";
Now, on the click on these links I need to do some processing on the server side to determine where I need to navigate to and for other information. My understanding is that I cannot use <asp:linkbutton /> in this html string I am building. How do I make a server side call if i don't want to use ajax.
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Oct 17, 2010
im very new to ASP.NET and web based applications. I am very interested in building websites though. a friend told me " if you want to build web sites then forget ASP.NET as that is for applications, stick with HTML" .... but HTML is static code and ASP. NET is dynamic and surely better? the oinly one real thing that gets me though is this "if ASP.NET is used to build Web-forms and web based applications then what good is it for building web sites? ... a web based application and web site/ page are 2 different things? so if i want to get into building web sites for me and other people, what should i need to know? HTML, PHP ect?
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Mar 25, 2011
My intention is to give the user a flexible user control on a master page that does the following:
When navigating, a child page will pass the URL (with querystring) and PageTitle to the user control. The user control will take those two parameters and insert them as a "breadcrumb" object at first index of a List<breadcrumb> collection
This part works fine through the use of a Repeater with a LinkButton contained in an ItemTemplate. The user sees each of the pages he has been visiting in descending order, the provided benefit is a quick way to re-open records they have recently modified or created.
The part I'm having trouble handling is what happens when the user clicks the LinkButton, which is that the child page adds a new reference to the URL at the beginning of the List<> collection and I cannot seem to control the behavior of removing the LinkButton before it gets re-created. What I've tried doing is:
List<>.RemoveAt(RepeaterCommandEventArgs.Item.ItemIndex);
Repeater1.Controls.Clear();
Repeater1.DataSource = List<>;
Repeater1.DataBind();
While that should work, my CreateBreadCrumb(string url, string title) function gets called by the child page before the UserControl detects the Repeater1_ItemCommand event, so in effect it appears that the wrong ItemIndex is being used for removal.
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Oct 16, 2010
How to wire up HTML server controls events?
I added a Input (Text) control in my web form and turned it into an HTML server control so its an instance of HtmlInputText class.
If I double click on the control It only adds a OnClick event handler method inside the script tags in the HTML doc of the web form but how to I get to handle its Serverchange event exactly? does VS.net 2008 has no ability to auto wire up the event to the control, do I have to manually wire up the event handler?
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Dec 12, 2010
I am building an application where I need to check/send a query to database every second. So, is there any way to do that??
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Aug 24, 2010
How do I do the old chestnut of scanning a directory of documents and building a web page that displays the list with built in links to the documents. Also the usual UPLOAD and DELETE functions would be good in order to add more or remove documents from the web form.
I come from a ColdFusion background where this would easily be acheived with the <CFDIRCTORY> and <CFFILE> tags...... !!
Am using VB rather than C#.
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Apr 21, 2010
i have a database with many tables. I want to implement add/update/delete functionality on each of them Is there any tool available which will build the webpages for each table with add/update/delete functionality.
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Jan 19, 2011
I am wondering if you might be able to with a little problem.I am trying to learn more about building web services by constructing one but I have run into what I think is a syntax problem that I can't figure out. Below is my C# code:
[Code]....
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Sep 30, 2010
I have a server control which consists of a gridview with custom navigation&information capabilities and with javascript functions to highlight the selected grid items or highlight when mouse over event occurs.. (full tested outside asp:wizard)I'm trying to use that server control inside a template wizard step, when I drop such server control in the first step of the wizard everything goes ok.
When I insert even a blank step previous to the step which contains the server control, the javasript code of the server control is not rendered at all, the page doesn't fail during load but until I go with mouse over an item of the grid for instance.When I check the rendered HTML I can see no HTML, nor javascript events of this server control where rendered, neither the implementation nor calls to javascript, but even rarer what is there visible in the grid for ie, even the other components of the server control, are not in the "view source code" content. I seems it was sent to the client, even showed, but truncated in some phase..
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Jan 13, 2011
I'm trying to insert some html 'div' tags inside a tabcontainer from server side. I haven't seen anything similar on the net. Here's the situation:
I have the following TabContainer on a form:
<cc1:TabContainer ID="TabContainer1" runat="server">
<cc1:TabPanel HeaderText="Person">
<ContentTemplate>
<div id="Test">
</div>......
How can I acheive that? If it's not possible, what other alternatives do I have? The most important requirement for me is to allow the user to remove the data by clicking on it.
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Mar 29, 2011
How to access the HTML control values in form object, if runat="server", is not present in the HTML controls.
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Oct 4, 2010
I have a pretty simple C # page that when the page first loads, a bio is diplayed in that center section based upon sql executed from my code behind. I have 4 link buttons on the page that when clicked, fill that center section with other content based upon which link button they clicked (News, Publications, Contact Info, and Presentations). I was all done, then I thought about using an UpdatePanel to get rid of the annoying "flicker" when the page posts back on the click of the link button.
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Mar 17, 2010
I'm just getting started with the ASP.NET AJAX Control Toolkit and got it installed into Visual Studio 2008 without issue.I created a very simple sandbox web app by following several tutorials. Some pages have a single button with a modalpopup event, others are using a calendar extender on a textbox. I've gone through many, including ones that you can interact with and seeworking on the website.Each time, VS builds the web app without issue and deploys and runs. The problem, however, is that "no AJAX happens" when I try to use the app. This has happened on two separate PCs running Windows 7 - one with Pro and another running Ultimate, all 64-bit One machine was also running Visual Studio 2010 beta 2).When I hit a page with some of the toolkit controls, the page renders normally and I see a lot of script references in the generated HTML so something's happening. But take one example:
[Code]....
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May 17, 2010
I have seen some examples on other sites , but since im not familiar enough with DirectoryInfo and Files from the System.IO namespace, i dont know how to change it to fit my needs. So i found a very simple example that works, but i have some questions.
Here is the code i found:
[Code]....
This works great and lists the files in my root directory.
#1 - What i need to know is how to accomplish the same thing but in a format i can control, this code simply displays the files at the top of my page and pushes everything down. So does anyone know of a good and simple tutorial written in C#?
#2 - I also need to be able to setup the code so that certain files within the directories are not displayed, as in the code behind files and other files to be determined by the business.
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Mar 18, 2010
I have a few questions about HTML Editor Control.
1. when saving content to sql server which dataype do I use?
2. Since they changed this site, I am unable to find access the videos. there was a video about custom editor control, but it was in VB and I need the code in C# does anyone know how to access the videos and sample code on this site anymore?
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Feb 4, 2011
I want to know: what are the basic differences between html server controls and web server control. As I have gone though lots of surfing but couldn't find the exact answer.
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Feb 14, 2011
I need rft server control not HTML based server controls to display and store text as well as images, from which i can get rtf text and can save it as it is in DB.
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Jul 16, 2010
[Code]....
I know there are a couple of posts about this already, but I still can't figure it out.
I'm using Table Adapters method called GetBBNewsByNewsID with the following SQL query:
SELECT Description
FROM BB_News
WHERE (NewsID = @NewsId)
The table has columns: NewsID, Header and Description. I only chose Description cuz that's all I wanted to show.
This is my code (aspx.cs):
[code]....
The error I keep getting is:
Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.
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Feb 2, 2010
I want to building a website. I don't know step build a new website. I don't know use DataSet or create new class store connection string connection to DB ?
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Apr 23, 2010
I need to dynamically creates form with textboxes, dropdown list, required validators from database.Anyone has any idea on the best approach to do this? Can you please show me link to example, tutorial?
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Mar 7, 2011
I have been trying to implement an extended GridView that eventually will include a panel with a number of filter options outside of the grid iteself.
As a test I have added a dropdownlist and a linkbutton but when these are rendered to the page they are rendered as plain HTML with none of the javascript or ids that are generated for server controls as a consequence the postback event is not fired when a dropdownlist item changes and the linkbutton is rendered as plain text.
[Code]....
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Mar 8, 2010
i know this question have been mentioned alot here but mine is a little more updated, now with ASP.net 4 and new Ajax client templating plus JASON services. so if i got all these new capabilities will i really need server side controls as long as i can bind on client side, create data-views on client side heck i can even use data-context and apply CRUD operations on clients side.
so i actually i wont need button_click server side event or what so ever... i am asking this because i own some commercial Controls like Telerik and Component art and they both offer client side operations ow but still i am confused as to my knowledge creating these controls will still have to go through Page Life cycle
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May 9, 2010
I have problems building a GridView programmatically. My code is:
[Code]....
This displays the GridView with the following problems:
1. The Html constructed in the Subject column displays on the page as raw Html. The source code shows the Html characters in their ASCII form. The function HTMLEncodeSpecialCharacters is obviously incorrect.
2. The PagerSettings display the page numbers only (1 2 3 4) and not the First and Last text (want to display << 1 2 3 4 >>) despite setting PagerSettings.Mode = PagerButtons.NumericFirstLast.
3. Clicking the page numbers is always one page behind. For example, when the page is opened, page 1 displays. If I click 2, page 1 still displays. Then click 3, page 2 now displays. Click page 4, 3 displays. Click 2, 4 displays etc etc.
4. The column headings are aligned in the centre despite setting HeaderStyle.HorizontalAlign = HorizontalAlign.Left.
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Nov 4, 2010
i wnt to creat a EDITABLE GRIDVIEW , in code behind ( not using sql data source or anything ) want everything happen in code behind using C#
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Jan 25, 2011
Need to build a treeview dynamically from SQL data. I have 2 tables Project and SubProject.
A project can have many sub projects...
I need a display like this....
Project 1
subproject a
subproject b
Project 2
subproject c
subproject d
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