TabStop is not working - c#

We have a form and textboxes in it. All of control's tabindex are set correctly and TabStop = true.
When some textbox is focused and when I press tab, focus is not set on next textbox.
Note : Controls are in the panel and its TabStop = true

Set TabStop for the panel to false
Make sure that the tab indexes are like the following:
Remember that you have a nice tool to set the Tab indexes in Visual Studio:

My solution: Containers must have the tab numbers set correctly even though they are not stops. Finally working!

Old post and nothing here helped me.
Tried everything including to force .Select() e .Focus() on the controls.
For some reason taborder was behaving all in a funny order, even disabling/setting visible = false on one control other orders was wrong as if the tab index was working in reverse.
Only thing help was de Document Outline, you can open that box with Ctrl + W, U or by the menu on VS.
VIEW -> Other Windows -> Document Outline
It ill show your controls in a tree fashion.
Just drag the controls to the correct order, it ill affect the tab order.
Word of warning: I struggled a bit with it because dragging (in the Document Outline box) some controls inside a panel caused them to move to the top upper corner of the panel (in the Designer). Just dragged them back to the position in the Designer.
For some reason the order the controls are show in the Outline Document box affects tab behaviour in nasty ways.

Have you set the tab order correctly? Select the form in designer view and select View > Tab Order to set the correct order.

Set TabStop for individual controls. Remove it from panel.

Perhaps the TextBox that you can't tab from is a multiline TextBox with AcceptsTab set to true? This would cause the TextBox to consume the tab key itself.

I know this is an old post but I've just had a similar issue and thought I'd share my solution.
Check that you have set the TabIndex before adding the control to it's parents Control collection.
I noticed for the controls that were being skipped I was adding them to the parent before setting their TabIndex. Once I set the TabIndex and then added them to the collection they behaved as expected.
One thing to note is that Visual Studio showed the tab order I wanted but at run time it did not behave that way.

Related

tabindex on C# winforms skips first textbox on a panel

I have a weird situation. I have a panel with 4 textboxes, 2 are read only. I have tab stop set to true and tab index set on panel and two editable textboxes. When running the application, the first textbox never receives focus. I have deleted the textbox and created a new one with a different name, same result. I then reversed the tab order and the other textbox was skipped. for some reason, whichever textbox is set to be hit first when the panel receives focus is completely ignored. I have tried manually setting the tab order and using the tab order wizard both. I have even tried to programmatically set tab index and tab stop just to make sure without any luck. I have several other panels and group boxes on the same form with similar controls, and they all work as expected. I'm running out of ideas, does anyone have any suggestions?

Disable some of the TabIndex values on Form Controls?

I have a Windows Form with 27 controls, but I need the tab key to cycle between only four of these controls. Every time the tab key is pressed, it should only move the focus between these 4 controls.
How do I do this?
Set the TabIndex of the controls you wish to navigate through. For the others, set TabStop to false.
This article describes how to set the tab index on Windows Forms controls.
http://msdn.microsoft.com/en-us/library/bd16a8cw(v=vs.90).aspx
According to that article, setting the TabStop property to false, on the controls that you want to be ignored by TAB, should achieve your objective.
For the 4 controls that you do want to be affected by pressing TAB, use the TaxbIndex property to set the values from 0 to 3.

User control Anchor property issue

Context :
I created an User Control. For some reason, I want to use this control in different size. To keep the initial "Template" of my User Control when re-sizing, I use the property Anchor on my different element inside the control.
So when I create my control at design time, it is possible to me to hand re-size the control and keep the original "Template" of it.
When the control is created, it look like this :
And after re-size :
As you can see, the property Anchor work well.
The label and the picture stay in the middle.
The "?" stay to the left corner.
The problem :
The problem I have is, when the control is reloaded, created with a different size as the initial one, all the elements inside return to their initial position :
I don't know if this is the better way to do what I try to achieve. Keep in mind that I add and re-sizing the control's during the design time.
Thank you.
EDIT :
I think my problem is caused by the designer. Ex : I add my control in the designer, I re-size it, I run the solution. All is working good. But when I go to the code of the page, and then, return to the designer, the element inside the control returned to their initial position.
EDIT 2 :
Ok I have found a solution, I simply moved all the element of the User control inside a Panel. For some reason that I can't explain, it work perfectly. The control's stay at the same location.
The solution is ta add a Panel to the User Control and dock it to "Fill", then place the element inside of this panel. For some reason that I can't explain, the designer keep the location of the re-sized control's elements.
The anchoring, docking and auto-sizing of a UserControl seem to be terribly confusing. I found UserControl does not auto resize with the Form which suggests that you set the AutoSize property to False, which I did, and it still didn't correct my problem. But when I tried your solution, I also noticed there are two copies of the AutoSize property! I had set the AutoSize in the UserControl designer to False, but the Form designer where the UserControl instance was added also had an AutoSize on the instance, and that one had a different value (it was still True). When I set that to False also, then everything worked (with the panel in place). Then I removed the panel you suggested, and everything still worked. So I guess the trick is to make sure you check all the properties of the UserControl in the UserControl designer and in the form designer where the control is used. Then you shouldn't need a panel.
I've had similar problem in VS2015 project, and unfortunately - none of your answers helped. Clean and working solution was found here, in Jignesh Thakker answer.
For quicker navigation here it is how it was done in my project (c++/cli, not c#, but idea is the same):
System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e) {
/* some code */
myUserControl = gcnew MyUserControl();
myUserControl->Dock = DockStyle::Fill;
tabPage1->Dock = DockStyle::Fill;
tabPage1->Controls->Add(myUserControl);
/* some code */
}
Set the Localizable property of the parent form at VS designer to false. This solves the problem at design time. (Save, close and reopen the form after switching the property)
If you need a localized application switch the Localizable property to true after finish up working at the layout and don't care about the wired representation in the VS designer. At run time it's shown correctly.
Tested in VS2013

C# WinForm press tabs and it jumps all over the place

I have a WinForm program. In one screen it has several ComboBoxes, TextBoxes, and Buttons. How can I make it so that when the user presses tab, it will go through the fields in sequential order. Meaning from top to bottom? Or we can say "In my defined order"? So, for example, it starts with TextBox1, and then when the user presses Tab, it will go to the next TextBox, and when Tab is pressed again, will go to Button1, etc. etc.
Not sure if it’s possible, but for some reason pressing tab jumps all over the place. What defines the "tab"? what logic does it use to make it jump to the next field?
The TabIndex property of each control defines the tab order within a container (Form, GroupBox, Panel, etc). If you are working in the Visual Studio Designer, you can use the View --> Tab Order menu item to view/edit the tab sequence.
Each control has a property called TabIndex. When a user presses the Tab key, Windows cycles through each control in the order of the tab index. If two controls have the same TabIndex, they are selected in the order in which the controls were added to the Forms Controls collection.
It is also worth noting that if you have a control that can contain a group of controls within it's Controls collection (i.e. GroupBox), the tab processing engine will give tab focus to the parent control and then cycle through all of the internal controls, in their internal sorted order. This means that all child TabIndex values can be maintained independently of all other controls that are in the same collection as the parent control.
You need to use the TabIndex propert on the control. Be aware that according to the documentation, you must set the TabStop property to true in order for it to be included in the tab ordering.
You need to define the TabIndex of each control. There is a button in the designer toolbar to make it easier (I don't remember the name, but you should find it easily... it's probably something like "Tab Order"). Click this button, then click each control on the form in turn.
Each control has a property called "TabIndex". These will by default just be incrementing as you create items. You can set these manually.
Set the TabIndex: http://msdn.microsoft.com/en-us/library/aa984423%28v=vs.71%29.aspx
Please check out TabIndex property.

what could be the possible reasons for TabIndex not working properly

so I have started from 0 and defining tabindex for the controls on my form but at run time it is all messed up. the form is a little complex tho. it has horizontal and vertical splitters and panels, group boxes and some older VB 6.0 activeX controls which is a Tree control inside them. even if i do it programmatically and read previewkeydown eventg and say if it is TAB then control2.Focus() it is still working wrong. so frustrating. any thoughts? ..there are also labels on the form which do not need tab so I have defined 0 for their index.
How are you setting it?
If you are in visual studio with the form in design view select view -> tab order and then click on each item in the order you want them.
Usually works for me.
The reason is that the controls are in different Containers. Suppose you've got panel1.TabIndex = 0 and panel2.TabIndex = 1, then in panel2, textBox1.TabIndex = 0, in panel1, textBox2.TabIndex = 1. At runtime, textBox1 comes before textBox2 because its panel comes first!
As kerry said, use view->tab order to see the complete hierarchy of tab orders.
I'm mentioning this because I haven't seen it in any of the winforms tab order threads that I have found on stackoverflow.
If you have multiple panels, you change your panel tab order by clicking on the Panel, going to properties, and then you change the TabIndex to whatever you want. This will allow you to navigate from panel to panel in the order that you want. Then within each panel, follow the recommended steps listed above using view > tab order and click on each cell in the order that you want to set.
Follow the steps below:
Set the TabIndex property to DIRECT CHILD containers and controls in your form or container, either using the View > TabOrder utility or directly from the properties window. Completely ignore the TabStop property of containers, which defaults to false even it's very important.
Repeat step 1 with each container.

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