C# - Dynamically Generate HTML In .NET?

Dec 11, 2010

I was interested to know whether or not asp.net is allows us to dynamically generate HTML inline on the .aspx Source page (not the code-behind). For testing I created the following simple .aspx page...

In my asp.net code-behind I have the following:

protected List<string> myList = null;
protected void Page_Load(object sender, EventArgs e)
if (myList == null)[code]....
Notice that the Repeater control did in fact create the four list items. However, the contents (One String, Two String, etc) of the myList list did not come along for the ride.What do I need to do to evaluate the myList list and get its values inside the list item tags? By the way, I'm not concerned with how to use the Repeater control specifically, so if there is a solution to this problem that does not include the Repeater control, I'm fine with that.

Note: I'm aware that I can bind the "myList" generic list to an asp:BulletedList and get the same result. I am more interested in dynamically creating HTML inline of the Source page.


Forms Data Controls :: Dynamically Generate HTML From Server Side ?

Jul 24, 2010

How to Dynamicly generate HTML from server side ?

I'll give you some examples..

Now im using Response.Write("<a> hi hi </a>"); something like this and i generating stuff dynamicly depends on what is on the SQL..

I was wondering how facebook does it or all those sites is generating a full page depending on the SQL...

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Jan 16, 2010

do you think it would be difficult to write a framework where mvc compares last html it output to the current html we want to output, and instead of sending the entire html, figure out what has changed and generate js code that will do the updating as compared to previous html? (presuming nothing was manually changed on the client using js).

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Dynamically Generate URL?

Dec 26, 2009

I have a .NET developer working on a web application for me. Basically, the brief was to produce a site which operates a bit like BaseCamp, whereby users register and their usernames are incorporated into the URL of the site for their sub-account holders to log in.E.g. a master account holder registers at [URL] with the username 'dave'. Dave can then send a link to his clients where they can register. The link Dave sends out to his clients to log-in is: [URL] [URL] Basecamp does this but they do it via sub-domains rather than folders at the end of the url (e.g. [url] - I'm keener to use folders as non-techy people (who this is aimed at) could find sub-domains a bit confusing. I thought it would be straight foward to get .NET to generate these URLs dynamically from the database.Anyhow, my developer tells me that it's absolutely not possible to generate the URLs without hard-creating folders in the filesystem and using redirects within those folders to redirect to a generic log-in page with a querystring variable. To me this is a very messy solution. I could do this myself in classic ASP, one of the reasons I have employed a .NET developer, as having used .NET CMS systems like Umbraco this is how they work. It must be possible. Can anyone confirm the situation with this? Is it possible to do in .NET? Would it be a hugely difficult task?

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Using C# To Dynamically Generate CSS Files?

Nov 10, 2010

I have a site that gets deployed to over a dozen clients. The main website has a base template, and each client has a client folder that overrides the colours. The problem is that there are a lot of CSS files, so making a change that forces us to update every client takes a long time. The automated build process takes care of replacing the updated files.

I would like to change the CSS files to be usercontrols instead, and those usercontrols could then inherit from another usercontrol where client specific values are stored.

So instead of having a forms.css file and then a /client/forms.css file I would have a Forms.ascx file that inherits from a usercontrol that contains the colours.



Then the masterpage would inherit from the usercontrol instead. This would make the maintenance of the client sites much easier.

If this is possible, would it also be possible to have the Forms.ascx control output the markup as CSS? Or make the extension .css and still have the ascx properties?

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Apr 28, 2010

I have about 10 different objects that get populated from user input. Instead of creating 10 different view pages, is there a way to dynamicaly generate the input form and have only one view page? What I am looking for is a run-time solution like the form generator in visual studio when you "Add View".

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ADO.NET :: Generate Statement Dynamically?

Dec 13, 2010

I have a sp that generates a result looks like below

Userid orgid

1 100
1 200
1 400
2 100

I would like to generate a string something like below by looping thru the output result data table using ado.netUserid 1 should generate It needs to generate below statement surround by {} and separated by comma(,) if it has multiple orgids.. and orgid( after & ) need to be dynamically assigned in the string based on the table..

{[Org].[org ID].&[100], [Org].[org ID].&[200] ,[Org].[org ID].&[400] }
Userid =2
{[Org].[org ID].&[100] }

How can I dynamically generate this statement? I can generate the stament if there is only one orgid for user but if you have multiple orgs .. not sure how Ic an concatenate multiple orgids by comma..

AllowedSet = "{[Client].[Client ID].&[" + ClientID +

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Web Forms :: Dynamically Generate An URL?

Feb 4, 2011

I want to dynamically generate an URL which should be of the following syntx:

http://<variable for domain>/FolderName/downloads.aspx?MAC=a.b.c.d & dtype=win

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Mar 3, 2009

how do i go about generating textboxes dynamically, i tried the following but it doesnt work properly because once the add question button is clicked again it removes or overwrites the existing dynamically generated textbox. What i am trying to do is when a user clicks on a button, a textbox is generated which allows them to then insert a question, the amount of questions they can set has no limits
which means many dynamic textboxes can be generated. Here is my code so far;


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How To Dynamically Generate Listbox Items

Nov 23, 2010

This has got to be more simple than I'm making it. I want to generate a listbox with years for the values. It needs to be dynamic. It needs to list from 17 years ago to 25 years ago. This is what I have so far, I get the correct number of items in the listbox, but I don't get the correct value. They are all "1985".

Dim y As Integer
Dim NextTime As Date = Now
Dim bday_yr As New ListItem()
y = 0
For y = 17 To 25
NextTime = DateAdd(DateInterval.Year, -y, System.DateTime.Now)
bday_yr.Value = NextTime.Year
bday_yr.Text = NextTime.Year
<asp:DropDownList ID="BirthYear" runat="server">

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Web Forms :: Dynamically Generate Sitemap Of Any Url?

Apr 6, 2010

I am develop a webservice for user have to simple enter a url of website and it must generate a sitemap.xml for that particular website.

I have used GoogleSiteMapProvider but gives only local website Sitemap not any other.

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Web Forms :: Want To Generate The Code Dynamically?

Oct 6, 2009

style="float: left;"
onclick= [code]....

I want to generate the above code dynamically.. How can I do that.. Basically add a hyperlink dynamically and hook it with javascrpit function and an Image..

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Set Image1path - Dynamically Generate Image

Oct 28, 2009

Instead of doing this

& "<img src=""" & image1path & """/>" & "</div>"

in a string can I set image1path (retrieved from the db) to the imageurl property of a dynamically created asp.net image instead

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Nov 11, 2010

I have a 3 layer aps.net application (DAL, BLL,PL)

I wanted to create a horizantal menu and then to populate/enable/disable the items of the menu depending on the user has permision of a specific form/page or not.

The backend/ data base work is complete. I give rights to a user/role on a specific page and I

also develope functions/procedures to check the user rights/retrieve all pages on which the user has rights.

The missing part is the front end, How I can implement this on the front end?

If I got some standard way, I will immplement it in all my future asp.net apps, As most of our apps have some menu and we want to display mentu items to the user depneding on the rights.

I may want to clear one thing here that I want a horizantal menu but there is no horizantal menu in aps.net tree view.

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Web Forms :: Dynamically Generate Texbox?

May 25, 2010

I have Dynamically generated HTML Table which has dynamically generated button in one of its column. If that button is clicked it adds a textbox to the very next row using javascript.I encountered a problem in identifying which column's button is being clicked.Please someone help me how to get the particular row index of a table of which button is being clicked. And how to send that rowindex to the javascript function which generates the textboxes.

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Aug 27, 2010

How to create a hash key based on the user login? And based on that hash key how create persistent url for that user?

i.e picasa album sharing based on one identity key value.

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Apr 17, 2009

I have some html code in a string variable in the code behind.

How can i display the HTML in my page?!

what controls do i need and how to pass the HTML inside it?

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Mar 29, 2010

On my form I want to display n number of rows of asp textboxes where n is determined by the number of records in the corresponding database table. I can dynamically generate html controls and get the values via request.form but I can't figure out how to do the same with asp controls.

The output from the following code, displays the text boxes from the "input type=text" statement, but displays nothing for the "asp:textbox" statement. I would prefer to use asp (or third party controls) so would greatly appreciate help on how to render non-html controls dynamically from my code behind.

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
Dim ncount As Integer = 0
Dim strOutput As String = "" [code]....

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Oct 14, 2010

i have designed a rdlc file with a few text boxes and given the dataset and defined the parameters in it. now my requirement is that in my report form i have a text box if the user enters a number say "2" or more that should dynamically generate two or more copies in the same rdlc.

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May 20, 2010

In a webform i am building, i need to generate several Textbox and validation controls, that is already done.

However, i also need to generate a calenderextender for one of the boxes...is this at all possible?

i've done a bit of research and have had no luck so far...

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Feb 9, 2010

how to dynamically generate textbox during button click. for each button click i should get the textbox generated along with labes dynamically ,in asp.net using C#

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Web Forms :: Generate Varification Code Dynamically?

Jan 14, 2011

Now i m creating one regestration modulein this for verification purpose i want to send SMS on user mobile so how to generate Automatic varification code at every time when user completed their regestration form.i have complete module for sending SMS.So, i want your help for genetare automatic code

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How To Generate Html File Via C#

Apr 24, 2009

I used the following code

StreamWriter subFile =
new StreamWriter(path1);string strSubFile;
strSubFile = value.ToString();

I use the above coding and generates one html file. In that html file all contents are worked well, but click events are not worked? I think streamwriter is an problem, if any other way is there to generate html file via c# and in that html file able to generate the click events.

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Generate HTML In The Codebehind?

Nov 17, 2008

Is there a way to generate HTML in the codebehind, rather than have it done in the aspx file?

I'm trying to have

<div class="something">
other stuff

The problem is I want the class of the div to be changeable when the user clicks on a button in order to have different formatting.

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Feb 10, 2011

I coded in code behind to dynamically generate a gridview as the columns of the gridview changes based on user selection. In the gridview I have dynamically generated controls like textbox, dropdown list etc.I have a few filtering options about, for example: listbox which will postback on change and causes the gridview content to change as well.My problem is: since the controls are randomly generated and every postback will read dataset from database and reload, the naming of the controls are dynamically generated too.

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Aug 19, 2009

i needed to have the number of rows,agianst every row there should be list of checkboxes which can be checked / unchecked.

Example :

SNO Employee Name ChkBox1 ChkBox2 ChKbox3 etc...

Finally when you submit, Employee name and the list of CHECKED items will be stored in a database table.

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Dynamically Generate Multiple RadioButtonList And Capture Their Values?

Oct 12, 2010

I have a situation where I need to generate multiple sets of radio buttons. These radio buttons display One to Many relationship data.

I know how to get it to work with a workaround that I used back in Classic ASP days ... in which I essentially just spit out the HTML dynamically and keep track of my controls using systematic IDs. Which is nothing more then an Primary Key appended to a string constant i.e. String.Format("Dynamic_{0}", myChildRecordPKValue) so my HTML looks like this:


Note that I am using a javascript function which updates a hidden field with the selected value (Each parent record has a corresponding hidden field). So after making selection user will hit the submit button and I get my values using Request.Form[myHiddenField1] and so on ...

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Dec 29, 2010

i am working with one student management system. i want to do following task : whenever i clicked on NEXT(Arrow) button in crystal report then next student report should be displayed. All the details stored in db "next" button fetch the details of student from db and desplayed in crystal report. so, what is the steps and solution for this task?

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Oct 29, 2009

I have to generate Tab panels dynamically based on a list, for e.g. List<string>. Each of these dynamically generated tab panels will inturn have more controls like textbox,label etc (these must also be dynamically generated).I should also be able to access the value in textbox to perform a DB save operation. I personally felt using the list view along with tab-container n tab-panel would fit in.. But i've not been able to achieve what i wanted...

This is my aspx code and on page load i bind the list view to a List<string>... All i get on my screen is the Add button.

<asp:ListView ID="lvDynamicTextboxes" runat="server" ItemPlaceholderID="itemPlaceholder"
<asp:PlaceHolder ID="itemPlaceholder" runat="server">
<ajax:TabContainer ID="tabContainer" runat="server">
<ajax:TabPanel ID="tabPanel" runat="server">
<asp:TextBox ID="txtText" runat="server">
<asp:Button ID="btnAddTextBox" runat="server" Text="Add" OnClick="btnAddTextBox_Click" />

Looking forward for some advice...I'm open to any other way of doing this too..( I found a way by dynamically adding tab panel and then inserting the textbox, but want to avoid it due to the problem of adding the controls into the control tree and retreiving the values from the textbox for a save operation)

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Jun 24, 2010

I am creating a system in ASP.NET VB whereby a user can enter data into a textbox and the data is populated into a label - easy right? Well, yes the first time is easy. But what I need is... kinda like Twitter, one textbox, multiple labels. Each entry into the textbox will populate a new label (an empty the textbox) without loosing the labels that currently hold data that has previously been entered.

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Feb 12, 2010

I am using the tab control and basically I have 4 buttons. Each button will load a seperate ascx control into a brand new tab. After about 4 tabs, since it has to regenerate all 4 tabs, the speed in order to add tabs just becomes too long for my tastes. Is there any way to remedy this and make it go faster?

EDIT2:Using Internet Explorer 7.0 and 8.0

EDIT: Some Code, I store the i in viewstate and loop through this every time for each panel per regeneration

private void BuildNewTab(int i)
TabPanel newPanel = new TabPanel();[cod]....

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Jul 10, 2009

I'm trying to use fsize to dynamically generate a file size on the page.

My code is as follows:

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When I view the page it shows up as a comment in the source, but doesn't actaully show the file size on the page.

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Oct 30, 2005

I want to generate HTML pages for the ASPX dynamically generated pages which are least modified. The targeted HTML page should contain the whole html output of the ASPX page. How can this be done.

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Jun 24, 2010

I have some html data stored as binary in sql server database. After pulling this from database i am rendering the same using response.write(str);// Str is the html data...

now problem is while rendering the page the gets wider & horizontal socrll appears..

Now what i want the horizontal socrll should not appear.

way by which i shold create the container. Mine html data should reside within the container.

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Aug 17, 2009

how to generate a thumbial given a url or html of the site.

I am using asp.net 2.0

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Sep 15, 2010

HTML reports in an asp.net application.The report content should bedatabase driven. since we have faced some problems with Crystal reports during the Deployment ,also it takes some time to load data.It affects the performance of application.

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Mar 30, 2011

I want to make it so that by pressing a button on the homepage a user will be able to create a new html page on the server of the website (e.g. www.example.com/0002.html) I need this page to be always there and accessible by everyone. How can one create a html page programmably using asp.net?

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Web Forms :: Generate HTML Using VB.net Function?

Jul 23, 2010

I'm trying to generate a block of HTML code using a VB.net function. I created a function in a class. THe function generates a string that contains html and a strValue that I would like displayed.

public shared function getMyHTML(strValue) return string
str1 = "<table><tr><td><%=strValue%></td></tr></table>"
end function

I added a call to this function in the page_Load event to generate a string on the page. In the aspx page, I have the following code:

<% =stValue %>

The string value passed to the function appears on the page, but none of the html or formatting that is passed. When I view the page using View source, all the HTML is there exactly as it should be. I read this may have something to do with viewstate. But don't know what to use and where to place it to override it.

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Sep 1, 2006

I am trying to dynamically generate meta tags in a file (which itself is written at runtime). I was to place double quotes in the meta tags and here's how I am trying to do it

int i = 34;
string name = "keywords";
string contents = "cotents";
char quotes = Convert.ToChar(i);
string s = @"<meta name=" + quotes.ToString() + name + quotes.ToString() + " content=" + quotes.ToString() + contents + quotes.ToString() + ">";

If I try to print this string, it shows as empty, however if I remove one quotes.ToString(), it shows up (of course with one missing double quote).

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Jun 28, 2010

I'm doing some research on security and sitemaps in ASP.net and am unfortunately running short on time. I have not worked too much with ASP.net security so I'm not completely sure if I'm heading in the right direction.

Here is my problem:

I have a public website (i.e. on the internet) that will allow any user to sign up to. The website will be developed using ASP.net webforms. These users may create other users and assign these users different roles.

Different roles have different restrictions and the menu is displayed appropriately. For example, a user acting as an administrator can see all menu options. Whereas a limited user will only see some of these menu items.

There needs to be the ability for users on our end to modify what pages certain roles can access. For example, if Role1 can do task X, we would like to be able at some point modify Role1 to no longer do task X. This would be done using an application built in-house.

User types (roles) are to be saved in the database. User permissions (what pages each type can have access to) are also to be saved saved in the database.

Here is something I am thinking of doing:

Implement the authorization and authentication set up built in to ASP.net using the web.config fileUse Sitemaps to dynamically create menus/breadcrumbs from the database

I believe it is possible to do the second one using custom providers (please correct me if I'm wrong). But I am not entirely sure if it's possible to configure the web.config file dynamically.

I suppose this is really more of a yes/no answer but I would just like to make sure I'm not going in the wrong direction. I will be using VS2008 and .net 3.5 framework.

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