i'm doing a webshop in asp.net (c#).
Is there a way to push the edit button in the gridview through the code of c#?
I have a "new" button, that just adds the row, it would be great if that same row would "open" itself for editing without user having to press "new" then "edit"...
I know there are other ways to do this, i just want to know if this is possible... it would save tons of time!!
thanks in advance for the anwsers!!
Andrej
Just call the event handler you wrote to handle the edit button push.
Basically speaking, all that happens in code when you click a button is that the button's Clicked event is raised. In a GridView, the event is actually something like GridViewButtonClick. However many handlers you have plugged in will then execute (and you can't, and shouldn't have to, control the order of execution). For a built-in button, because you cannot raise the event from outside that button, you can simulate the button click by just calling the handlers you have attached to the event. If this were your own custom control, you could define a method you could call from outside that would cause the control to raise a certain event.
Related
How can I prevent the click event from firing, if the click was on a checkbox?
I mean, when I click in the text area, I'd like to handle that but when the checkbox is being clicked, I don't want that click code to fire.
You can remove the delegate from the delegate list like this
Alternativement (and probably more safely) you can simply wrap the on click event in a if and prevent the code from executing under some circumstances.
I am using a textbox in winform (c#) and using the text to make consults in a database.
But I need constantly consult the text of the textbox every time that text changes. So for these, I use the KeyUp. But this event is too slow.
Is any event that just fires when the textbox editing has been finished ?. I consider for finish 2 conditions
The control lost focus.
The control has 200ms without keypress
You could use the LostFocus event, to capture when the user clicks on a control outside the textbox.
Otherwise, you'll need to choose from one of the existing events. (Listed here)
Come to think of it, you will likely have to capture multiple events. DragDrop if someone copies/pastes, for example...
You mean something like this?
Control.LostFocus
Provided that you consider finished as being when they click off the textbox.
I'm currently updating it on click, but this results in the user being able to see the repopulation occur. Which other event can I use which will allow me to handle it myself, then show the combobox when i'm ready? ( after population)
I don't know what you're developing, but that combobox is probably on a window or so that will have an event that fires on show. Use that event to populate the combobox in.
[edit] Ah Winforms. Use the Load event.
[edit2] On each click eh.
Alright. I found a dirty solutions that advises you to override the WndProc and capture messages, but I think it's better to inherit the combobox and override OnDropDown to perform you populating before calling the ancestor's OnDropDown method.
You should populate the box when entered too, because a value may be selected using the keyboard (arrows) without even dropping down the box. You'll need both if you want it on each selection, because a click only causes the Enter event when the box didn't have focus before.
Have you tried the ComboBox.DropDown Event?
You could try to call SuspendLayout() before updating and calling ResumeLayout() after the changes.
combobox.add_HandleCreated triggers after the control is created as the form is loading
My form has several textboxes and several buttons. The textboxes are loaded with data by the load event. If I make changes to the textboxes and then move the cursor over a button, the textboxes are suddenly loaded again with the original information. I don't click a button. I just move the mouse over one. Why is this happening and how do I stop it?
This cannot happen by itself. I suggest you check all event-settings.
For instance, you could have, by accident, linked the Load event to the Button's OnMouseEnter or something like that.
After your comment:
You should absolutely not use the paint event to initialize things. The paint event will be called after every change in the Form.
So move that code to the Load event.
I am creating some textboxes dynamically and I try to get their values when I click a button, but they are gone. I create the text boxes (declaration, initialization, adding them to the place holder) in another click button event. What shall I change to be able to read their values?
If you will create the controls on the Init stage (eg: Init event) on every request (eg, both postback and non-postback) then they will be available and will preserve their state.
There could be several reasons one of Them being your control initialization being executed prior to the event handler. This will be the case if you on post back initialize the controls in page_load. The click event handler is executed after page_load is run
How about getting the values using a simple Request.Form. That should work regardless of how you add the controls. Post some source, so we can see what's going on. :)