I am writing an on screen keyboard in VB.NET for a touchscreen. My problem is; how do I keep my keyboard form from getting focus when someone clicks the buttons on it? I have it on top using Me.TopMost That part is working great but I want to leave the current app have focus, not my keyboard. I'm guessing I need to use Windows API functions to accomplish this, however, I have not found any good examples in VB.NET.
View 2 RepliesWhen I run my VB.NET Winforms app I do not want it to steal the focus from the other open apps. FYI, my app is started from the command line but that shouldn't make a difference. I've seen question 577076 but that doesn't seem to work.
View 2 RepliesIs is possible to prevent a modeless form from losing its focus? I would like to force users to click the exit button of an addin form shown modeless before they wander into the main application. I need to show an user form of an addin modeless, in order to be able to interact with the document of main application. However, I would like to force them to exit this form before going into the main application.
View 5 RepliesI want to prevent my application from losing focus, untill I close it. (so that I can not click on ANYTHING else, untill I'm done with it. period.)I've tried using Me.Focus() on a timer, but that doesn't do s***...I've also tried countless API's out there, but I seriously can't get any of them to work.. my form simply does NOT want to stay in focus! It's driving me crazy! What the hell am I doing wrong?
View 2 Replieshow to prevent a popup toolbox window (Form) from stealing the parent Form's focus?I've been told to override CreateParams and use WS_EX_NOACTIVATE (0x08000000) but that does not seem to work (see the code segment shown below). I'm using Show() and not ShowDialog().
Protected Overrides ReadOnly Property CreateParams() As System.Windows.Forms.CreateParams
Get
Dim cp As CreateParams = MyBase.CreateParams
[code]....
I have a picture box in which I type some letter on capturing keystrokes.The problem is that at Form Load, the focus is on the buttons available on the form. How can I keep the focus on my Picture Box at form load?
View 2 RepliesI have mdi application, on main form which is mdi container and has a tree view. i open the child form on afterselect even of treeview. the issue i'm facing that i open the form but focus remain on tree view until i click on the the form. my question is how i can give focus to form rather it stays on treeview. i tried frm.focus also activatemdichild(frm) no sucess.
View 21 RepliesI have a mdi form and two child forms ina VB.net application. When i load the mdi both of these child forms are shown, one of the form is in focus while other is not. Now the problem is if i clickon the body of the second form it does not get
View 1 RepliesI've got a Child form being shown with it's TopLevel property set to False and I am unable to click a MaskedTextBox control that it contains (in order to bring focus to it). I can bring focus to it by using TAB on the keyboard though.
The child form contains other regular TextBox controls and these I can click to focus with no problems, although they also exhibit some odd behavior: for example if I've got a value in the Textbox and I try to drag-click from the end of the string to the beginning, nothing happens. In fact I can't use my mouse to move the cursor inside the TextBox's text at all (although they keyboard arrow keys work).I'm not too worried about the odd TextBox behavior, but why can't I activate my MaskedTextBox by clicking on it?
Below is the code that shows the form:
Dim newReportForm As New Form
Dim formName As String
Dim FullTypeName As String
Dim FormInstanceType As Type
[code].....
I really want to make use of the toolstrip and databinding but these two technologies keep conflicting with each other. I think the root cause is something to with the fact that the toolstrip buttons don't recieve focus in the normal way.
I invite you to try the following:-
1. Create a form and put some text boxes a tool strip with a save button on it.
2. Write a query or sproc to get a datatable back and bind your text boxes to the field in the datatable.
3. In the code behind your Save ToolStripButton put some code that makes an arbitrary change to a field on the dataset (it doesn't matter whther this field is bound to a text box or not). eg:-
m_DataTable.Rows(0).Item("CommissionRatePerc") = "0.0000"
4. Put a breakpoint in the save and run the form.
5. Make some changes in the text boxes. Do not leave the last text box but rather click save while a text box whose contents you have edited still has focus.
6. When your code hits the breakpoint, query the value of the data table field that is bound to the text box you were editing when you clicked save - it will still contain the unedited value. Unless you do something about it that unedited value is going to get saved back to your DB.
We did get around this problem by explicetely setting the focus to another control on the form before saving. That worked most of the time because it prompts the text box to flush it's value back to the datatable (nb EndEdit does not work, although you'd have expected it to). However, and this is the reason I suggested you add a line of code that changed a value in the underlying datatable in step 3, if you change a value in code in this way before the value from the text box get's flushed back then it doesn't seem to matter what you do, the user's current edit is simply lost. They will still show in the text box, though, leading your user to believe that the change has been committed when it hasn't. Our final solution is that we never ever change a value in the adtaset in the code behind our toolstrip buttons. That's working but it's a pretty big restriction.
Here is what I've done:1) Created an Excel COM add-in for Excel 20032) Added a NotifyIcon to the Windows taskbar notification area (aka system tray) during ThisAddIn_Startup3) Added a ContextMenuStrip with a ToolStripButton to the NotifyIconWhy is it when I right click on the NotifyIcon, Excel gains focus? If after clicking on the NotifyIcon to display the ContextMenuStrip I choose not select an option on the ContextMenuStrip and instead click back on the Excel window, I get a weird flashing cell in Excel.I've created a video of the problem to help you see what I [url] anyone know how to prevent this? Ideally, I'd like to be able to click back on Excel and only have the ContextMenuStrip close and Excel regain focus.
View 1 Repliesvs 2005 sql 2005 developer/I have a datagridview with 4 columns .I want the user to be able to use the arrow keys to move through the rows and just two of the columns.I want the other two rows to behave like a label that cannot get the focus. Nor be selected.I have been messing arround with the "cell enter" event but the language wont let me set the selected cell from within that routine.
View 4 RepliesI have a datagridview. If the user adds a new row, and then clicks away from the grid. How can i stop them from doing this?
I want them to finish the row add first or cancel it. I want to then update the table adapter in the grid's leave event.
If the row validation fails, i want to display a message and re-focus to the cell in question.
The first problem i am running into is that the focus continues to go to the control that the user clicked on to move away from the grid.
How do i cancel that event?
As an example, if the grid is on a tab page and the user clicks on another tab page, i want to prevent that page from displaying if there is an error on the row that is being added to the grid.
I was hopeing for a cancel option in the lost focus event of the grid.
I have 2 window forms, form1 has a button, which will send a msgbox when I click on, and form2 closes when it's deactivate-event raised. If I have form2 focused, and I click on the button of the form1, form2 will get focus and then close, but no msgbox showed from form1, what should I do to get the msgbox in that case?
View 5 RepliesI'm creating some software to keep my students on task. I've set it up so that I can control certain aspects of their computer from my computer. Problem is, I'm not sure how to control other applications from my application. I mostly just want to prevent it from being minimized. Some students like to switch screens quickly when I walk by. I would just like to make sure that it is always on top until I specify otherwise. I'm using VB.net, I'm using the 3.5 .net framework for compatibility reasons.
View 1 RepliesWhen you use a tab key to select a textbox, all text in it is automatically selected. What's the easiest way to prevent this from happening? (Setting the selection to none in Enter or GotFocus events doesn't work)
View 1 RepliesI have 4 radio buttons in a group box that I populate with answers from a database.
1.) The way the program works is I first populate one of the buttons randomly with the correct answer.
2.) I then proceed to populate the remaining buttons with False answers, by starting at the first button to see if it has a value or not. If not, it is then populated, if so then its skipped and I move on to the next button. This continues until I populate the remaining three buttons with false answers.what is the best way to prevent the three false buttons from having the same value? And where can I find an example.
I have flat buttons with a background image (.png, slightly rounded border appearance) and no border. When I use the tab key to move between items, a box shows up around the button. How do I prevent this?Also, when I use the tab key on any part of the form, and click on a button, the box appears.What I want is on the left, what happens with tab key is on the right[URL]..
View 2 RepliesA panel with enabled scrollbars has many buttons. If I push the tabulation key, focus navigates between buttons.When a partially visible button has focus, the panel scrolls itself in order to completely show the button.
View 1 RepliesI have 7 Windows forms.The order of the forms is defined within a configuration file.I want to place buttons on each form that will show the next available options.The Next button will move the next form in the list.The Back button will move to the previous form in the list. The Finish button will execute the final piece of code.The Cancel button will exit the application.If the user is on the first form, then there is no Back button.If the user is on the last form, then there is no Next button, but there is a Finish button.
Example 1:
Form1 - Next, Cancel
Form3 - Next, Back, Cancel[code]....
i have 4 different handles buttons with code how can i connect them in another "general button" that will make the 4 buttons to work with one click
View 3 RepliesI've a multiform project, and one of the forms within it is a loginform created using one of the templates built in with Visual Studio. This form, when opened has no code in any of the open events, yet still manages to:
- put the cursor in the password field ready for text entry
- highlight the "OK" button
- press the "OK" button if the enter key is pressed.
How can I replicate this behaviour on other forms? I've copied the properties of the button to OK buttons on other forms but can never get them to behave in the same way.
I have two forms in an application. One is he background and then I show another keypad form called with the show() method (not showDialog) because I need to perform some validations on btn click.
The kepad has 10 buttons and an Enter Button. The problem is that the form keeps loosing focus (I checked this with a messagebox which keeps poping up once for focus=true and again for focus=false, it continuously keeps losing and gaining focus) so it does not process any keypress events untill i click somewhere on the form. I tried using me.focus() in form load event but to no avail. The forms TopMost property is also set to true.
I have 1 messagebox which has 2 buttons (MessageBoxButtons.YesNo) usually we can change the focus of the button(yes and No) with tab key and we also can trigger the button with enter key.. but sometimes, i can't change the focus with tab key and can't trigger the button with enter key.i think the messagebox lost its focus..i have to click the form, so the messagebox will regain its focus how to set focus for messagebox?
View 9 RepliesAfter I did a sendkeys to another program from my form, i wanted to return focus to the form. i tried me.focus = true but that doesn't work.
View 1 RepliesPrivate Sub lv_main_ItemCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles lv_main.ItemCheck
e.NewValue = e.CurrentValue
[code].....
I have a button which is in update panel. When I click on button then it click event run two times. How can I prevent second time click event?
View 4 RepliesI'm using a dialog form with two buttons and two Radio buttons.I'm oppening this Dialog when a button is clicked on the parent form.My situattion is when the Dialog opens the code in the button event continues to execute, but I only want it to continue to execute only after a button from the dialog form have been clicked
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
If multipleEXT = 2 Then
Extension.Show()
[code]....
I realy need to know this: I have a custom control that need to keep the keyboard focus at all time. But I also need to let the user to click some button and radio. So, is it possible to tell these control to preform their task without moving the focus away from the custom control. NB: I know that Menu and tool strip button dont move the focus, but my task is to eliminate the tool strip and provide a graphical interface
View 4 RepliesOne would imagine that clicking anywhere within the MDI Child form (or on any control) will focus that form. But in my application I can only focus a MDI child by clicking on its titlebar, which is an abnormal behavior on the part of the user. My forms are filled with either controls or panels so I don't have the luxury of just "clicking on the form." But clicking anywhere within it should focus it.
View 1 Replies