I am trying to create a simple WebForm in Visual Studio 2017. I have a textbox and I have to catch "Leave" event on it, but these are the only events available:
I've been searching for similar questions and problems but I did not find any solutions.
There is no Leave event because ASP.NET runs on Server while the user's "leave" happens on the client. You could handle the blur event in JavaScript and then do a post back. Very nice solution is in this SO answer.
This is normal behavior, you're working with a System.Web.UI.WebControls.TextBox.
It doesn't have a Leave event since it's a Web UI control. If you want a Leave event, you'll have to use Javascript (note that this will be Client-Side).
Related
i know there is a way to quickly create a an event handling method like onPaint onLoad etc. by typing a small amount of the method then using the tab key. but i am a lil rusty and cant remember how? can anyone shed some light? i am using Visual c# express 2010
I believe you are looking for code snippets: https://msdn.microsoft.com/en-us/library/z4c5cc9b(v=vs.90).aspx
In the design mode, when selecting particular control, you would double-click to create a new event handler (stub) for specific event. Here is more: Creating Event Handlers in Visual Studio
I'm sure that since visual studio went free you've gotten lots of nooby questions, and I'm here to add onto that pile.
When I make a button in wpf I can't figure out how to get it to let me edit actions for button press. I know how to add events under the triggers tab however when I switch over into the MainWindoww.xaml.cs there isn't any code in it for that event. So what do I need to do in order to work with button events?
P.S I have visual studio 2013 community.
Here is a simple code snippet that will probably help. Assuming that you have a WPF button named btnControl in your XAML, you can add the following click event handle to the code behind (MainWindoww.xaml.cs) module:
btnControl.Click+=(s,e)=>
{
// put your click event proc code here
};
Note: you do not need to modify your XAML.
Hope this will help. Regards,
I've been creating a new webforms website in c# and been working exclusively in source view until yesterday when I wanted to create a method for a button click for the only dynamic part of the site and I was confronted with this:
I've never seen this before! Every page is the same and it reoccurs on another machine with VS 2013 The site renders fine and publishes without issue. Other websites work fine, so it's got to be this project.
I don't know if this is a separate issue or is part of the same problem, but I managed to link up the button to a method using Resharper, but data from textboxes are not passing to the method, which again I've never had before.
It's a 30 page bootstrap site (replacing an old site) that I've nearly finished! Am I screwed??
Any help would be appreciated.
EDIT:
It's not that I'm worried about seeing the page render in design view. I never use it. I just want to be able create the button click event method. At the moment the button click is just reloading the page and not passing form data to the method.
This happens due to improper termination of the Visual Studio processes due to which the files get corrupted for which you might need to use system restore or re-installation of the product. Still assuming that its caused due to some setting mismatch we can perform the following steps.
1.right click on an html file listed in Solution Explorer
2.in dialog box that opens click on: Open With...
3.click on: HTML (Web Forms) Editor, AND on the right pane click on Set it As Default
after this action all html files that you open have options: Design...Split...Source.
Reference : http://social.msdn.microsoft.com/Forums/vstudio/en-US/25d6c666-6216-4fa8-992b-f9bb088dfc7d/visual-studio-2013-missing-design-source-and-split-buttons
I've got a custom button control that handles an OnServerClick. My aspx dev's are asking me if it would be possible to influence Intellisense so it will give me all the possible event handlers for that page. Is this possible?
Basically I would like to have auto completion on my OnServerClick events in my ASPX pages (just like when I would have an enum).
Any idea?
It's not possible to get intellisense on server side events in the aspx.
It probably only works in the designer. When your dev's want to see the possible handlers, they can check out the designer and view the click eventhandlers in button properties / events / click.
Simply a limitation / bug / you name it of Visual Studio 2010 and lower.
But: maybe VS 2011 will make you happy! :
In VS 2011 Developer preview, markup intellisense for all ASP.NET
server-side events will show you list of exiting handlers and a value
called “Create New Event” . Which means you can attach the event
with some exiting event handler or select “create New event” to
generate an new handler with the right signature in the code-behind
file.
For more info and screenshots:
Server Side Event Handler Generation From ASP.NET Markup in Visual Studio 2011 Developer Preview
Hi all I'm running into a situation where link buttons are not responding on a gridview control in one of my apps deployed on a production machine. Not sure exactly what's going on.
The problem is very similar to this one although I've examined the output html on the page and it looks reasonable. Any thoughts/suggestions would be greatly appreciated.
If these LinkButtons are being dynamically created as part of the DataBinding of the gridview, they must also be re-created during the postback.
Page_load fires before the linkbutton click event does, and if after page_load is complete that same link button has not been re-created there is no event hooked up as the link button does not exist at that time, and the click event won't fire.
Any chance javascript is disabled in the browser? I've also had trouble like this with certain AV security apps that muck with javascript in the browser.
Turns out this was an issue with SQL server authentication. It was not immediately apparent to me because I was running my app in Firefox which did not display any errors; just non responsive UI elements. Running things in IE revealed the problem. I adjusted permissions on the database I was trying to connect to and things now work correctly. Thanks for your suggestions everyone.