While pressing tab key the focus is getting moved through the tab control and the button but not going into the tabpages (tabPage1 and tabPage3)
Considering the fact that you can move between tabpages using arrow keys, Tab key is probably not intended to be used for this, but if you really want to get it to work this way then you should add a KeyDown event
if (e.KeyCode = Keys.Tab)
{
//logic which changes TabControl.SelectedIndex. If SelectedIndex equals max then select the next control
}
Related
I have a form with 2 textboxes. The first one has a customsource for its autocompletion set like this :
textBox1.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
textBox1.AutoCompleteSource = AutoCompleteSource.CustomSource;
textBox1.AutoCompleteCustomSource = GetUserNames();
The GetUserNames() method retuns an AutoCompleteCustomSource and all this works very well.
When this form opens the focus in on the first textbox, the user can type in or choose from the autocomplete and that works well.
Both textboxes have an onKeyDown event and in that event they should do some validations using the values of both textboxes.
I want to keydown to only do its validations when ENTER is pressed when the autocomplete listbox is closed.
Look at it this way:
the user starts typing, a list appears, the user chooses an item from the list and presses enter to confirm his choice, and then he wants to press TAB to go to the next textbox.
But when he presses ENTER after choosing an item in the autocomplete list the keyDown event already fires. At this stage the keydown event should not fire, the ENTER should only confirm the choice from the autocomplete list.
Is there a way to detect in the keydown that ENTER was pressed while the autocomplete list was still open ?
Or is there a way to disable the keydown event while the autocomplete list is open ?
EDIT:
from the comments I tried the answer in this link https://stackoverflow.com/a/40915048/3110834
Unfortunate it does not works in this case but it has teached me that pressing enter on the autocomplete suggestion does 2 things:
close the autocomplete window
fire the keydown event of the textbox
So I need to find a way to stop the keydown event for the textbox to fire when pressing enter on the autocomplete window.
Edit:
Things are far worse than I thought.
When you open the autosuggest box and then click on a suggested item to select it, the keydown event also fires and it has Keys.Enter in its KeyCode ! Since when is a click equal to a keystroke ?
How do I stop this ? Is this a bug ?
I ran into this same problem, I followed the approach in this link https://stackoverflow.com/a/40915048/3110834
if you try to evaluate if there is a list open during the Keydown event, it will always return a false, since the event already closed the list.
instead I observe the PreviewKeyDown event to evaluate if the AutoComplete list is open or not, if it is Open, i unsubscribe from the KeyDown event (which only uses the Enter key on my case) and if the list is close, i re-subscribe to it back again
private void tbxAND_PreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
if (IsAutoCompleteOpen())
{
tbxAND.KeyDown -= tbxAND_KeyDown;
}
else
{
tbxAND.KeyDown += tbxAND_KeyDown;
}
}
}
notice that IsAutoCompleteOpen() starts the code to enumerate the openlist.
this may not be the full solution for this particular case if you still need to catch other keys, but i wanted to leave the hint in case someone else run into this problem.
I have several TextBoxes within a UniformGrid.
I want to select all the within a textbox when it is clicked I'd rather the event came from the uniformgrid. I was able to implement selecting all the text with GotKeyboardFocus for when I use only the keyboard with the code below in the handler. However when I merely click on the box it highlights while my mouse is down and on mouse up the cursor appears rather than the text remaining selected.
foreach(TextBox Box in grid.Children)
{
if (Box.IsKeyboardFocusWithin)
{
Box.SelectAll();
e.Handled = true;
break;
}
}
I also have an PreviewKeyUp handler that watches for a max number of letters then moves to the next box. Also each box is initialized with the max number of letters when the screen loads. Which is why I want to do a select all on the text in the textbox so it can be typed over easily.
I was able to use GotMouseCapture almost perfectly except that it doesn't work if you click near the text only near the edge of the textbox.
Try hooking up to the PreviewMouseUp routed event. That worked for me.
I have a C# .NET WinForm. In the form, I allow a user to add an item to a ListView by double-clicking in the ListView. This adds a TextBox control to the ListView and places the key cursor in the TextBox so a user can type.
I detect that a user is done with an item in a couple of ways (e.g. pressing Enter, Esc, Tab...), but also when they Leave (TextBox.Leave) the TextBox.
The problem is this set of steps:
User triggers TextBox.Leave by mousing down outside of the TextBox.
I add the new item to the ListView.
I select the the new item in the ListView.
Mouse up occurs and the new item that I just selected, loses focus and is unselected.
What I would like is for TextBox.Leave to be triggered by MouseUp, not MouseDown. How can I accomplish this?
Edit: Cody suggests using the ListView.LabelEdit property. Here are my results trying that:
listView_DoubleClick(...) {
listView.LabelEdit = true;
if(double clicked on existing listViewItem) {
listViewItem.BeginEdit(); //this works as expected
} else {
var newItem = listView.Items.Add("");
newItem.BeginEdit(); //this doesn't work, see below
}
}
The call to newItem.BeginEdit() only works when the user double clicks where the new item will show up. If they double click on any other blank area in the listview the new item is added, but it does not enter edit mode. What's going on here?
Pressing the mouse down on another control is causing that other control to request the focus and so the focus moving causes the TextBox.Leave event to occur. Preventing ever other possible control from requesting the focus is not a very viable option. But luckly you only need to prevent the ListView from using the MouseDown to shift focus. So you need to override the WndProc of your ListView and when the MouseDown windows message occurs and you are currently showing a TextBox you eat the message. In order words you do not allow the base class to process it.
I Have a WPF window that have a RadGridView and a Button,
My requirement is, when you click on the button and
select a row in the grid, it should work similar to
pressing on the shift key and clicking on a gridview row.
(To select multiple rows).
So, i need to press the shift key programatically in button
click event.
Can this be done?
Appreciate if anyone can provide a solution
Do not fire a KeyPress event manually. Rather, on this page, Telerik indicates that to allow multiple selection, you must set the SelectionMode to Extended:
this.radGridView.SelectionMode = System.Windows.Controls.SelectionMode.Extended;
So, put this in your button click (I guess you'll want it to toggle between Extended and Single. Multiple's behaviour is awkward, but that's just me) and you're good to go.
Edit:
The toggle button will have something like this in its click event handler:
private void toggleButton1_Click(object sender, RoutedEventArgs e)
{
this.radGridView.SelectionMode = toggleButton1.IsChecked ? SelectionMode.Extended : SelectionMode.Single;
}
I have wpf application in which I am using "ENTER" key as "TAB & Enter". If data are valid then move to next control.
My problem is that I want to raise TAB event programmatically. Please provide some code.....
You don't need to send a TAB key event to the application. Instead, use the MoveNext method to move focus to the next control