Web Forms :: Can Dynamically Create Server-side Controls
Oct 5, 2010
Is it possible to use AJAX and an update panel and create server-side controls such as checkboxes, buttons, and radio buttons (asp server side) that is created when another server-side control (that which exists outside the update panel) calls them?
secondly, how do you keep them from re-appearing after a postback?
When I do a postback, the controls in the update panel disappear.
I have a page with a table and two button with the names (Submit and Add Rows) When I click on Add Row a new row will be added to a page(This is achieved using javascript), when I click on submit button I will be doing server side validation. If I found any error the error will be displayed on the page. During this process the controls which were added by me were loosing its state. As a result I need to add the rows once again and need to fill the data and click on submit button. Can any one let me know how to avoid this and see that the controls donot loose their states. So that there is no need for me to create rows once again if any validation fails on the server side.
Is there a way to add asp.net server side control dynamically on the webpage without causing postback. Like can I add a calender control dynamically on a button click and handle calender events to do some other work....
however, on the server side (after postback) I can't read them from the Request Object. How do I "mark" them so I can read them at the postback?
protected void DeleteSelection_Click(object sender, ImageClickEventArgs e) { int multiIdsToDelete = Request.Form["multiCheck"]; <-- In the Future will be added to an array so I can do the delete for each row selected. }
I need to create a .pdf file which can download by client clicking on the link in my web site. That pdf should be generated using stored information in database. It has different types of fonts which has not installed in client machine and only installed in web server. In this case, I'm not interesting to use crystal report or any other third party components that need to register to use and has some limitations.
I'm trying to add dynamic content to my page from external files, but coming short on how to do it properly. First i tried fiddling with the WebClient class, but when i added the dynamic content it just posted the code behind.. Actually the same as Response.WriteFile does
It's for a simple CMS where i have the basic site core and then some extra modules that i have lying in a seperate folder. If the parsing of the requested url demands a modulefile, the idea was to search for that file and if it existed, run the code and post it back to the site core.
In classic i was forced to manually (ugh..) add includes with the filenames statically written in the file-property.. That could be the way to do it again, but is there another way? Something like server.execute in classic, i just need to be able to send site core variables to the external file (without sessions if possible)
I am trying to create a composite control - A textbox, gridview and a button. When I create the grid dynamically, I use my function GridViewDataBind() that will basically create the gridview at runtime and bind it with data. In this method, I add a blank column (first column for expand/collapse image), databound columns (using custom Itemtemplate), a placeholder, then a new html row/cell and a child gridview. I want to know how can I add these html rows/cols to my gridview. Here is the code:
[Code]....
Not sure if the approach is right and if I was able to explain my problem?
The scenario is this. I have a long page that has a scroll bar. I'm us an Ajax ModalPopupExtender and that too is very long and has a scroll bar.
The problem I'm seeing is that in IE when a user scrolls the modal popup window, when it reaches the bottom it also scrolls to main window which has a really ugly user experience.
So what I want to do is, through server side code, I want to dynamically change the body css overflow from auto to hidden and I can't seem to find a way to make that happen. I've tried a number of approaches and none of them seem to work.
I want to permit the website admin to create new page dynamically.as I want the admin toadd new page for events of company and upload it to the server without asking me to do this.then how to make the enduser (websitea dmin) to create page dynamically and add text to this page ,also upload this page to the hosting company server without asking for username and password of the hosting company server.After that I want to make the admin of website to upload images to the images forler which locaes on hosting company server.
I put this in the aspx.cs of the form I am doing, but, since I haven't found a way to call variables from the ASP, I recreated them, still, even if I did get those, this problem would still exist:
I have one big panel called Panel1. Withine Panel1 I have Panel2 and Panel3. WHen I drag the panels into Panel1, Panel2 is on top of Panel3. How can I get them side by side?..
another is how can i create a windows form in .aspx file... with using ajax control or coollet..
I'm trying to use MS IME on a server to retrieve some Japanese info in a silverlight app. The app accesses to the server by using WCF, but when calling a CoCreateInstance to create a IFELanguage2, it gives me -2147467262. The same code I'm using on the server actually works pretty fine on a WPF app.
Here is the code,
// ...omit Guid imeGuid; int errCode = Ole32.CLSIDFromString("MSIME.Japan", out imeGuid); WinBase.CheckError(errCode); Guid feLangIID = new Guid(Constants.IID_IFELanguage2); IntPtr ppv; errCode = Ole32.CoCreateInstance(imeGuid, IntPtr.Zero, Ole32.CLSCTX.CLSCTX_ALL, feLangIID, out ppv); WinBase.CheckError(errCode); // errCode is 2147467262 IFELanguage IfeLanguage = Marshal.GetTypedObjectForIUnknown(ppv, typeof(IFELanguage)) as IFELanguage; errCode = IfeLanguage.Open(); WinBase.CheckError(errCode); // ...omit
Do I need to setup anything to use the MS IME on a server side? I'm running the app on the following environment, IIS7 .NET Framework 4.0 Windows 7 pro 64 bit VS2010
Now I want to create a list like below in the aspx page, created from the database. I have done the work of keeping all the tags and tagURL from the database in a dataset. But I have no idea how to create dynamic HTML list or asp.net list from database.
I Getting A Problem In DataGrid's ItemDataBound Event. I Am Calling A JavaScript Function In DataGrid's ItemDataBound Which Retrun The CellIndex And RowIndex Number On Which UserClick After That I Am Re-Binding The DataGrid With jQuery Function After That ItemDataBound Event Not Working. I Want To Call The Same Function Again. Is Their Any Method To Call A Server-Side Function On ItemDataBound Event Except Client-Side Function..
I've created a ScriptService / ScriptMethod that uses a custom class as an input parameter but can't figure out how to create an instance of the object on the client side.I thought that when I used ScriptManager and Ajax before the ScriptManager registered my server side classes for me or am I completely mistaken?
In your opinion, what's the best way to create the server side to a pure Javascript application with ASP.NET? WCF rendering JSON? IHttpHandler? Update Like GMail, that runs in the browser (with a lot of Javascript) and submit and receive data with Ajax, for example.