Seems like a basic question but im looking for an article that can give a good solid overview of how a page in asp.net works.
What im looking for in specific is how variables react on postback and stuff like that. For example if I bind an Asp.net control to the page, do I need to rebind it every time the page is refreshed? And what if its a postback, do page variables get preserved across postbacks.
I have upgraded web application from VS.2008 to vs 2010. I was using previously ReportViewer 2008 control in a page and replaced with 2010 ReportViewer Control.
I have installed the ReportViewer Redistributable also in my local pc as well as in the server. Also as per the new requirement I have placed the Scriptmanager in the web page where the reportviewer control located.
While running the page, the reportviewer run the report and is not showing the data on the screen. It shows the blank screen. But If I export the data to execl or world it is showing the data. Also the page numbers in the reportviewer showing the total pages available in the navigation bar. I am sure the report is running and bringing the data to the screen but not showing it.
I'm wondering if it's possible to be able to use an HTML editor (such as TinyMCE) in an ASP.NET form without turning off validation for the entire page. There are other fields in the page that I want to use validation for. Will those not get validated with validation controls if you set ValidateRequest="false" in the page directive?
I ran into a strange issue with the AJAX MaskedEditExtender control, the extender is used with the Mask="99/99/9999" and MaskType="Date". Initially when the page loads the textbox was set to readonly using textbox.Attributes.Add("readonly", "readonly") in the codebehind. After the page loads if the user clicks on a certain button it would change the textbox to editable using javascript code: textbox.readOnly = false. The strange thing is after that if you start typing in the textbox you can see the entire mask (__/__/____) shifting to the right as you type. For example it looks something like this: 09__/__/____ instead of the normal 09/__/____.
If the textbox was never set to readonly in the first place this behavior won't happen. So it seems something got messed up when changing from readonly to not. I was able to reproduce this in a barebone aspx page with just the textbox, the mask extender, and a button that when clicked turning off the textbox's readonly. Anyone knows how I can fix this?
I am facing the issue "The page was not displayed because the request entity is too large."I am using ASP.Net 3.5, Sql server2008, IIS 7.5 and OS Windows 2008.I am finding the issue on following scenario:1. The error only shows up if the page is viewed as HTTPS (SSL).2. After login in the application if user waits for 1 min or more before doing a postback.Page size is about 200kb. It is running quite fine on Http.
I have created my first MVC application. I am using forms authenticataion. I have created a custom action filter MyAppAuthorizationFilter which inherits from AuthorizeFilter. Inside this filter I'm authenticating the user credentials by checking them against a database table (by overriding OnAuthorize method). If the user is not authenticated, I am redirecting the users to a login page (which is view of LoginController). I am using this filter agaginst my main controller so that all actions in this filter will execute only if the user is authenticated.
I do not have any problem when I use the asp.net development server (shipped with Visual Studio). But when I deploy the app to our IIS7 server, I can see the login screen when I access the default url, but after entering the credentials (both correct and incorrect) and posting back the Login page, it stays on the Login page (clears the pwd, but not the username). Its never getting redirected to the home screen or invalid login screen.
IIS 7 server has .net framework 3.5SP1, but no MVC. So I deployed the System.Web.Mvc dll in the bin folder.
Here's my Code (I've omitted the views and models as they are not needed here):
[MyAppAuthorizationFilter] public class MainController : Controller { // // GET: / [code]......
Having trouble putting together a good solid newsletter.Can some of you experts help me with this problem. Either with code or link tutorials.everything!
I am currently working on a site that reades from several fields in a database to present the information on the site. One of the fields containes several paragraphs of data and I am having trouble displaying it correctly on the site.
The database holds the text in a plain text format (no html) the requirements are such that the website should be able to display this same text, properly formatted, without having to convert it to html code. Thus far I have setup a <p> tag with an ID in the markup like so:
Code:
<p id="body" runat="server"></p>
The problem I am having is:
1) line breaks are not appearing (I only get a solid paragraph) 2) the ' marks are not showing up.
Here is my code behind
Code:
Dim lblBody As HtmlContainerControl = CType(editplaceholder.FindControl("body"), HtmlContainerControl) lblBody.InnerText = NullTest(dsarticle.Tables("selectedArticle").Rows(currentrow).Item("Article_body"))
I am sure my problem is that I am feeding plain text but I am not sure of the way around this. Do I need another html element? Is there somewhere I need to convert the text?
I have thought about using the opacity method to "fade" images into eachother as this method is supported by I think all browsers. Though I have never used the method before and I know this should be done in the javascript.
In this case I have 3 images so it should loop from Pic1 to Pic2 to Pic3 to Pic1 and so on but am not sure how to start out this. I will be happy for some idéas.
I am a newbie in web development I came from win form environment. how to set tabcontainer (ASP.Net Ajax Tool) width size according to users desktop screen resolution?
I have question regarding printer option page which pop up when i click on print button on crystalreportviewer and when i click okay on that pop up page it displays print preview of the report.
Is there any way to skip that pop up window(Printer Option) and just display (PDF)print preview screen instead?
(I am not exporting report to pdf, just want to display printview screen and when the user click on print button it will print out the page)
I have tried following code but i am getting error:
"Object reference not set to an instance of an object."
The below is the exact scenario, One form will be there and when user click on "Edit" hyper link other window will open to get more details. In that new window also I have a grid or a table which has other hyperlink which lead to open other window and in that window I will enter few details and save it....
I think I know the answer to this, just want to make sure.
Question: there's no way to turn off a timer in ASP.NET on the client side (easily—I've seen the undocumented hacks on the net). Therefore, you have to set up you own logic client side while the timer is running server side, correct?
I went through these examples and understand them:
So, the pseudocode for a trigger done programically—so you do something when somebody clicks a button Button1 would be-- after you set up a ScriptManager, UpdatePanel and suitable ASync PostBack triggers in XAML (as per the above links) so that the Ticks event is triggered in the UpdatePanel:
public partial class MyWebForm : System.Web.UI.Page
{ bool myTriggeringBoolean; //used to turn off and on code in the Timer's Tick event [code]....
I'm sort of new to ASP.NET. What i've done here is create a list of Newsletters seperated by University newsletters, and Alpha Newsletters. What I have now been asked to do is make these 2 lists into 1 list. I can't figure a Way to do it without designing the database? Does anyone have any ideas? Take these 2 lists and make 1? Using odsNewsletterAlpha and odsNewsletterUni to create 1 list?
I added a button on my website and tried to use confirmbuttonextender. I inserted it and enabled it on the button but when I run the application and click the button, the page just posts back, no pop up message or anything comes up. What would cause this? I don't get any errors
<asp:Button ID="Button1" runat="server" Text="Button" /> <asp:ConfirmButtonExtender ID="Button1_ConfirmButtonExtender" runat="server" ConfirmOnFormSubmit="True" ConfirmText="Once data has been updated, it can't be retreived" Enabled="True" TargetControlID="Button1"> </asp:ConfirmButtonExtender>
In My Code I have implemented jQuery validation ...
Next I add the following Code to display Loading Images when Page Post Back, but this Code is showing at the tme of Loading of the Page.
Followed [URL]....
Code
Protected Sub Submit(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click System.Threading.Thread.Sleep(5000) ScriptManager.RegisterClientScriptBlock(TryCast(sender, Button), Me.[GetType](), "alert", "alert('Form has been submitted.');", True) End Sub
