How do I allow CTRL-V (Paste) on a Winforms Textbox? - c#

I have several textboxes on a windows form.
I can't paste text into any of them using CTRL-V, though I can still right click and select paste. This is pretty annoying.
I have tried this with the form's KeyPreview as both true and false. TextBox.ShortcutsEnabled is also true.

Check to see if you have a menu on the form with a shortcut for Ctrl-V.

The following code should help:
private void textBox1_KeyUp(object sender, KeyEventArgs e) {
if (e.KeyData == Keys.V && e.Modifiers == Keys.Control)
(sender as Textbox).Paste();
}

The code you posted has nothing to do with your Ctrl + V problem, that is for certain. Not much else I can tell you unless you post some more code.
Special code should not be needed for Ctrl + V, but one guess I have is to make sure you have YourTextBoxId.ShortcutsEnabled set to True.

Yeah.. I know this is answered but I thought I'd throw my 2cents in just for fun. I also had a similar problem. Setting the TextBox.ShortcutsEnabled value to True did nothing for me. I was surprised to see the note left by Microsoft here: http://msdn.microsoft.com/en-us/library/system.windows.forms.textboxbase.shortcutsenabled.aspx regarding this issue. Quite interesting to say the least.
Given that, I just implemented the functionality through the key even handlers as indicated in the post by Webleeuw.

I was also going thru with the same problem. after a lot of googling finally I found the solution. It is because in the aplliciation ctrl+v shortcut was already defined(Edit menu-> Paste). After removing this...it work fine for me....Hope that it helps....

The TextBox control does not support the CTRL+A shortcut key when the Multiline property value is true.

Go to properties for the control:
Properties>Behaviour>Shortcuts Enabled = true
job done - will now accept default windows shortcut strokes for this control

Go to TextBox Properties->Behavior->Allow Drop SET TRUE.

You can comment already assigned same shortcut to other control, from designer.cs/.vb form of your form.
In my case I solved it for menu in following way
//this.copyToolStripMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)
((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.C)));

Related

How to enable ctrl+c shortcut in ComboBox (WindowsForm)

I am developing an app in C# with Visual Studio using Windows Forms
I have a ComboxBox and I would like to enable the Ctrl+C shortcut.
Right now it does not work (the selected text is simply not copied to the clipboard)
With a TextBox I simply need to set ShortcutEnabled to true, but this property does not seem to exist for ComboBox
Appearently it is what the guy in there tries to do but I don't undersand what he means.
MSDN does not elaborate much on how to do..
Shall I try to manually catch the shortcut in the
private void mycomboboxname_KeyDown(object sender, KeyEventArgs e)
method ?
That seems to me like an overkill... I looked here but did not understood it well (I can't find the IsEditable property when designing the form)
Any ideas welcome...
Hans Passant answer is right.
The key presses were simply intercepted (and prevented somewhere else in my code).

AcceptsReturn on TextBox not functioning correctly

I have a simple search field on a form that is set as multiline (which I understand is the only way to change a text box's height) and has the flag AcceptsReturn set to false.
However, when I press enter within that control, instead of it activating the default button as it should, it puts in a return character.
Now, I've also attempted using the KeyPress event to check if the Enter key has been pressed to activate the search-button click function in the hope that it would override this return behaviour - but it hasn't. Now it just runs the search AND inserts a return character.
I'm running Visual Studio 2010 (although this problem seemed to be present in 2008 too before I converted it) and C# .NET 2.0. Any solutions?
I see that an answer has already been posted, which mentions the AcceptButton property, but I figure I would state more clearly why that's necessary: quoth MSDN, on AcceptsReturn, "If there is no default button for the form, the ENTER key will always create a new line of text in the control, regardless of the value of this property." (I just tried it out on a dummy form - by "default button", they did in fact mean the form's AcceptButton property. With one set, the value of AcceptsReturn made a difference; without one, it had no effect.)
As for KeyPress, while that is obviously not the best way in this case, I have had to use tricks like that in the past - did you remember to set e.Handled to true in the case that you handled the event yourself?
The form has a property called AcceptButton. Is that pointing to the button you are calling the default button?
I just wrote a little test and it seems to work for me.

Backspace not working for IE Toolbar

I am developing the Internet Explorer Toolbar in c#.net using the band objects.
Now in my toolbar, I am using the textbox field to make the search enable, but in this textbox field, I am not able to use the backspace, delete, arrow keys and many other such button.
I am not sure about y I am not able to use this. Please help me about this. I found many question posted over like this, but none of them was having the specific answer.
Thanks
The problem is that the browser is eating the events for those keystrokes, so the solution is to force focus to the toolbar when the text box receives focus.
To fix it add this line to your toolbar's constructor:
yourTextBox.GotFocus += (sender, args) => OnGotFocus(args);
Also make sure you have implemented TranslateAcceleratorIO() per this example.
Compare your code to this one and see what's missing.

How do I enable paste in textbox with Ctrl+v

I have a normal textbox in my application.
I can paste data to it using my mouse (Right click -> Paste), but the shortcut Ctrl+V does nothing.
How do I fix that?
Make sure that yourTextBox.ShortcutsEnabled is set to true.
This behavior is enabled by default, so the question is rather what your code does to prevent it. Do you have any KeyDown/KeyUp/KeyPress event handlers that may intercept the CTRL+V keystrokes?
Similar issue in How do I allow CTRL-V (Paste) on a Winforms Textbox?
To quote Sandeep:
It is because in the aplliciation ctrl+v shortcut was already
defined(Edit menu-> Paste). After removing this...it work fine for
me....Hope that it helps....

Disabling a TextBox in C# .NET using CSLA

I am trying to disable a number of text boxes intended for displaying data (not edit) in one of my UserControls. However, for some reason I can not get the textBoxes to disable properly.
I've set "ApplyAuthorization on readWriteAuthorization" to true and the textBoxes are databound to the correct properties.
I've also added the following lines to the CanWriteProperty of my object:
if (propertyName == OpeningDateProperty.Name) return false;
if (propertyName == ChangeDateProperty.Name) return false;
if (propertyName == CloseDateProperty.Name) return false;
return base.CanWriteProperty(propertyName);
I can't figure out what I'm doing wrong here. I've implemented pretty much the same thing recently in other UserControls without any problems...
I am using Windows Forms in C# .NET (Visual Studio 2008)
EDIT: The code snippets and the properties are taken from my customer object. The date represent opening, last change and closure of the customer account. They are never supposed to be edited at all and in fact in the old sollution they are represented by textLabels, however we now want to use a text box and make the property's CanWriteProperty false.
I realise that the information might be sort of scarce, but I am looking for what I might have forgotten in this process.
EDIT: We are using CSLA as well and I guess (I'm new at this whole thing) this has something to do with why we want to do it like this.
EDIT (Sollution): As you can see in my answer below, the problem was that I had not set up the CurrentItemChanged event like I should have.
If you're trying to get them to be read only, then just set the .ReadOnly property to true.
Alternatively, if you're never ever using these textboxes for editing, then maybe just use a Label instead?
EDIT: Ahh it appears this more of a CSLA-framework question than a pure windows forms question. I've never even heard of CSLA before this question, but it looks interesting.
If you are databinding to properties of the control just bind the "ReadOnly" property of the textbox to the "CanWrite" property of your business object.
i think you mean ReadOnly property
To make this work you need to do the following:
Make sure the TextBox is databound to the right property in the correct way
Set up the needed checks for each textBox in the CanWriteProperty override in your root object
if (propertyName == OpeningDateProperty.Name) return false;
Make sure the rootBindingsource's CurrentItemChanged event is set up right
private void rootBindingSource_CurrentItemChanged(object sender, EventArgs e)
{
readWriteAuthorization1.ResetControlAuthorization();
}
Make sure the texBox's "ApplyAuthorization on ReadWriteAuthorization" is set to true
This solved the problem for me.

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