I have a fair number of buttons on one form and I want to add separate click (default) event handler for each. If I double click one control it adds the empty click event handler to the code behind.
Is there anyway for me to select, say 20, buttons and add a separate default handler for each?
I have tried Shift double click, Alt double click Ctrl double click but they all do the same, add one event handler and assign it to all the controls.
Edit
I get that I could have the same event handler for all the buttons, work out which one was click etc etc. This is not what I am asking. I just wanted a quick way to add the empty click handler for all selected buttons.
Sorry. Misunderstood the question, so removing the old answer as it's not really applicable.
My advice would be open the Form cs file in a text editor, find the region where the control/event bindings occur and copy, paste a particular Button line updating the event and id after.
Pretty laborious still.
Related
I just want to add simple thing, wherever i click on TextBox I want to delete text that is inside. The thing is I DON'T have in list of events, event called Click.. Is this even possible? Or just I need to install some add on. Buttons are fine, they have Click event.
MouseButtonLeftUp would work if you only are concerned with mouse clicks. With that said, what if someone tabs into the box or focus is entered by other means?
At that point you may want to look at the GotFocus event. Any time the TextBox receives focus, you can handle the event.
TextBox has events called MouseLeftButtonUp and MouseLeftButtonDown, you can use them.
I have the next situation:
there is a client app with a Form
the Form contains a few TabControl's
there are different controls on TabPage's of TabControl's
when the user clicks on any control, I need to activate the TabPage that is a parent of a control. For that I use a TabPage Enter event
when the TabPage gets activated, I need to make request to the server app, and I put focus to a hidden TextBox to disable UI
The problem is, when I click on a Button on another TabPage, in TabPage.Enter event handler I take focus to my hidden TextBox, and it seems like Button click event doesn't have enough time to be processed. When I put timer and handle TabPage.Enter event after 100 ms, the Button click event seems to be fired well. Same thing happens to all the controls: CheckBox doesn't get checked, RadioButton too. I wouldn't like to use timer, as that is not a stable solution.
Any ideas how could I make TabPage to process all mouse events before I take focus to hidden TextBox? I tried to use Application.DoEvents(), but that didn't help.
You are using a wrong event for a wrong control for what you are trying to do.
Enter event for TabPage is going to be fired when that page becomes an active control of the current form which might not happen under certain conditions. Instead, you need to use Selecting or Selected event of TabControl, depending on whether you want to cancel switching to a different tab or not (see TabControlCancelEventArgs parameter of Selecting event). In your case, Selecting event would be more appropriate since it won't allow switching to a selected tab until event is complete (unless you're doing an asynchronous request to the server). Additionally, you may no longer need to use the hidden TextBox.
UPDATE
Regarding comments to OP, when you have 2 (or more) TabControls on a form and you want to get notified when you press a button in any tab of a different TabControl, you can use Enter event for TabControl. Use a global variable to store which TabControl was activated in the Enter event and then send server request for a currently active tab of that activate TabControl.
If this doesn't work for your scenario, then you need to carefully examine your workflow and see if it can be improved in relation to what you want to accomplish.
I'm making a windows form using c# and added 3 buttons. When I double click on any object, it takes me to the code, the specific function that gets called when that object is activated, depending on its type. However, when I double click on the 2nd or 3rd buttons, it takes me to button 1's code instead of opening the function called by double clicking on the button I pressed.
Help?
That happens when all 3 buttons are assigned to the same event. Select the 2 wrong buttons and delete their event in the properties window. Now doubleclicking one of them will create a new code template for it.. You probably had the three all selected when you created the 1st event..
Remove the button click events via the properties window for each button and re-assign them apart.
I have a text box on a Gridview which I'm allowing some data to be edited. When the enter key is hit, the TextChanged event happens, like I'd expect. But when i change the data and click a button, the button effect not happen. I must click the button again to fire button event. I think it happen because the grid didnot lost it focus.
How to make it possible fire the button event just in one click?
You can change your gridview element's IsTabStop property to false to gain that effect.
Also if you want to cycle with Tab you can TabNavigation="Cycle" .
Both changes are in xaml.
Not much we can do to help you here without the code itself but here are couple things you could try to debug this:
Try different browsers – it may be a browser issue
Try some client side debugging – just open console and see if anything happens when you click the button for the first time
I am currently building a prototype for a new system screen, and i am using c# to build this.
The question i have is, i currently have 14 textboxes which are filled from a condition from a couple of other controls on the screen. these 14 textboxes all add up to a total shown in another textbox.
as these textboxes are editable (in case the client wishes to increase the value) (cant go into to much detail but they will) I need to have a firable ontextchange event for when the values change so the total box updates.
however i have a feeling there must be a way of not having to create 14 different events, is there a way that i can have 1 event which fires if any of the 14 text boxes are fired?
thanks
Alan
Yes, you can create a single event - and then subscribe all the text boxes to the same event handler in your class, which raises that single event.
If the clients will need to know which text box has changed, you'll need to think about how to best communicate that with them - you may want to create your own subclass of EventArgs. Otherwise, just a simple EventHandler or EventHandler<EventArgs> should work fine.
Yes, let's say your text boxes are called textBox1, textBox2, ... if you have automatically created method "textBox1_TextChanged" for event "TextChanged" of textBox1, you can easily use this method for all the other text boxes...
For example in Designer, just select yout "textBox2" component, go to Events tab on Properties Window and instead of creating new event by double clicking in the editable field next to the "TextChanged" value, just use the drop-down menu to select the "textBox1_TextChanged" method created (automatically) before.
If you need to decide which textBox raised the event, you can use the "sender" parameter of the method.