I want to use a text box to display some text. I can not disable it, because then the scroll bar will not work.
How can I prevent editing within the multi-line textbox, yet make it appear as if it is enabled, so that the scroll bar works correctly?
You can set the ReadOnly property to true.
Quoth the link:
When this property is set to true, the contents of the control cannot
be changed by the user at runtime. With this property set to true, you
can still set the value of the Text property in code. You can use this
feature instead of disabling the control with the Enabled property to
allow the contents to be copied and ToolTips to be shown.
The TextBox has a property called ReadOnly. If you set that property to true then the TextBox will still be able to scroll but the user wont be able to change the value.
As mentioned above, you can change the property of the textbox "Read Only" to "True" from the properties window.
textBox1.ReadOnly = true;
"true" property will make the text box readonly activate. and "false" will make it in regular form. Thanks.
Related
I´m trying to set textbox visible = false to avoid user from write on it manually but I still need it to write on it by using a bar code scanner, so I need it to get focused before use the scanner, what would be the better way to do it?
Your best option would be to simply validate that what's entered into the textbox is indeed a bar code. What happens when the scanner breaks down and the user still needs to enter a bar code? Limit it to numbers only.
If that's not an option and you find the scanner doesn't work with hidden or disabled textboxes, then set TabStop = false and Multiline = true, and try setting the text box size to 0x0. Or at least really tiny and make it the same colour as the background. In that case you'd want a label or something to then display the bar code or product info so the user knows the scanning worked.
Another possibility may be to set KeyPreview = true on your form. Then you can handle anything that looks like a bar code in the form's KeyPress event, no matter which control is focused. If numbers start coming in, capture them, and if it turns out not to be a bar code, just forward them to the focused control.
just simply set textbox property size to (0,0) with textbox visible = true
From the question, you want to achieve two things.
Make the textbox invisible before Scanning.
Lock the user from editing the textbox after bar code scanning.
Solution
Set the textbox visibility property to false before Scanning so that it does appear on the screen whatsoever.
Have an event handler after finishing scanning or at the end of your scanning method/function, change the Property of the textbox called Disabled to true.
Hope this helps.
If the purpose of hiding textbox is to not-allow user from editing it, then
you may set the ReadOnly property of texbox to true, then call the .Focus() method
before scanning the barcode. In my experience, after having installed the barcode
reader driver, softwares from accompanying CD, all you have to do is scan the
barcode and it will populate with the barcode-value in human readable format,
on any control in an application that can take user-input. I suggest to use
Readonly property of textbox instead of setting visible = false.
I'm working in a Windows Form Application, I have a textbox which I want to avoid that gets the focus.
Now I'm using the property Enable but it gives a bad appearance to the form.
Also I tried with this
private void txtMyTextbox_Enter(object sender, EventArgs e)
{
ActiveControl = objMyOtherControl;
}
But like I'm selecting words of that textbox when the event is raise the textbox lose the selection.
If you want to make the textbox unfocusable but you still want be able to select the text, what you are looking for is the ReadOnly property.
Here is an extract from the official DOC:
You can transform an editable Windows Forms text box into a read-only
control. For example, the text box may display a value that is usually
edited but may not be currently, due to the state of the application.
To create a read-only text box Set the TextBox control's ReadOnly
property to true. With the property set to true, users can still
scroll and highlight text in a text box without allowing changes. A
Copy command is functional in a text box, but Cut and Paste commands
are not. Note The ReadOnly property only affects user interaction at
run time. You can still change text box contents programmatically at
run time by changing the Text property of the text box.
So I have a UserControl Form. Where I have a MenuStrip
So I want to add a ToolTip on my MenuStripItems ( which are only pictures ). But setting the text on ToolTipText did not help at all. Also tried
adaugaToolStripMenuItem.ToolTipText = "Click for the current time";
adaugaToolStripMenuItem.AutoToolTip = false;
So I have no idea, any help? Is there a way I can add a ToolTip or some kind of hint to my MenuStripItems ?
Did you make sure ShowItemToolTips of the MenuStrip container is also set to true? It's false by default. You may want to use its other property DefaultShowItemToolTips instead.
MSDN Link.
Also check the item's AutoToolTip property is set to false. Its default value is true, and that means it uses the Text property as tooltip.
MSDN Link.
In my page_load event I have this code :
myTextbox.focus().
So when I set my textbox to visible=false my code doesn't work.
Hidden controls are not focusable. Set the Opacity to 0 instead.
You cannot. If something isn't rendered, it cannot be interacted with, so you cannot set the focus to it.
Focus means that user input is focused to the control, that means if the control is a text-box, the text input cursor will be placed in the control or if it is a checkbox, the checkbox will be focused and may be selected by pressing space, you can't put a text input cursor in a hidden control and it cannot be used for any user input.
If you still want to set focus for some reason, try setting its height and width to Zero.
Like style="height:0px; width:0px"
and use Page.SetFocus(yourControl); to set focus
When you set the Control.Visible property to false it doesn't just hide the control on the page. It omits that control from being rendered on the client's browser entirely, but "remembers" everything about that control on the server for future postbacks.
If you actually do a client side hide (i.e. set the CSS Style display: none; then it will still exist on the page, but just be hidden. At that point you can focus it.
I have some DomainUpDown controls in my application. The behaviour is set like this:
Normal: Each control can individually goes Up/Down (Change selected item)
Special: If a check box is checked, Up/Downing the first control will cause the other controls to change as well
Now there are some cases that I want some of the controls to be disabled by setting Disabled = true. I did it, but in this case changing the selected item of the first control will cause the other disabled controls to change the selected item as well.
Is there a way to completly disable a control so it does not accepts something like control.Text = "bla bla" ?
P.S: I need not to hide the control!
One way:
You can hold a list of Textbox.Text values, which will hold entries for all of your textboxes.
Upon OnTextChanged:
if your textbox is enabled - update it's text property and store it up in the list.
if your textbox is disabled - set it's text property to the last value you had in your list.
You can use a Dictionary or anything similar that contain KeyValuePair objects.
I'm afraid there's not. At least not without additional work.