I need to determine the child control with focus - I've got lots of controls in panels and other container controls so the ActiveControl is simply coming back as the TOP LEVEL panel I was trying something like this:
[Code]...
We have a main form which opens an MDI child form. What we want is to set the focus on a particular control in the child form, namely a telerik textbox. When the form is opened for the first time, the focus is set to the textbox control which has a tabIndex = 1 as expected. If the winodw is closed (and disposed) and then reopened via a button on the tool bar that calls the same code that opens the window when the application starts, no control has focus. We have added lines such as Me.rtxtPatientId.Focus() in the Paint event, load event, and activated event handlers but still cannot get the focus to the control. The code is quite extensive so posting it is difficult. However, here is the section that opens the child window:
if PatientSearchForm Is Nothing Then
PatientSearchForm = New frmPatientLookup
End If
PatientSearchForm.MdiParent = Me
PatientSearchForm.Show()
If PatientSearchForm.WindowState = FormWindowState.Minimized Then
PatientSearchForm.WindowState = FormWindowState.Normal
End If
PatientSearchForm.Activate()
PatientSearchForm.rtxtPatientID.Focus()
A 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 RepliesHow do I find out which control has focus in winforms?
View 4 RepliesIn my form I hace a Groupbox1, within Groupbox1 have a Groupbox2, within Groupbox2 have a Textbox1..how to call the Texbox1 from another form? When I use Dim newControl As Control = Form1.Controls(Textbox1.Name) I get nothing value?if I use Form1.Controls(Groupbox1.Name) it can get the Groupbox1
View 3 RepliesI am trying to find the handle of the child window for the Yes button in the User Account Control window so i can click it. This window has a structure with a few child windows with the same name.
Dim hwnd As IntPtr = FindWindow(Nothing, "User Account Control")
Dim hwnd2 As IntPtr = FindWindowEx(hwnd, 0, "DirectUIHWND", vbNullString)
Dim hwnd3 As IntPtr = FindWindowEx(hwnd2, 0, "CtrlNotifySink", vbNullString)
Dim hwnd4 As IntPtr = FindWindowEx(hwnd3, 0, "Button", "&Yes")
There are multiple CtrNotifySink with its own Button child window or other child windows. How do i search thru the different CtrNotifySink window to find the one that contain the Yes button so i can send a click to it? I do need to find it before i can send a click, right? because i try just sending it to the main window with sendmessage and nothing happen.I even try sending it directly to the handle found by spy++ of the yes button with bm click but nothing happen?
Is there a more efficient/easier way changing the backcolor of a control when it has focus and lost focus? Let's say I've got 10 text boxes. Right now I would have 20 different events...10 for Enter event and 10 for Leave event. Of course, entering would change the back color to "green" and leaving would change it back to "white".
[Code]....
Public Class MDIParent
Public Consignment As MDIChild
Private Sub mnuFileNew_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles mnuFileNew.Click
Consignment = New MDIChild()
Consignment.MdiParent = Me
[code]....
This is the code so far I have been testing for my MDI Parent/Child forms, and when I create for example 2 child forms with the File - > New menu option, the Windows menu lists all the forms I have just created ammended to it. Now when I create the 2 forms and then immediately select Rename under the Windows menu option, it changes the text of the last child form ok, but then if I click on the first child form that was create and then hit Rename again it doesnt do anything. I tried different methods of strying to set which forms has focux but nothing works.
I am currently translating a windows form application, written in VB6, to a webpage written in Visual Studio 2010. In VB6 it is easy to find out which control has focus on the form using '.getFocus()'. I have come to the conclusion it is not that easy, if at all possible, in vb2008.
View 2 RepliesI have a textbox on a form that when it loses focus it updates other text boxes on the form. But before it updates the other textboxes I check the input value in the textbox lostfocus event if it is undesired I return focus to the the textbox and alert the the user with a msgbox. However where my problem is, is that when the cancel button is clicked I don't care what the input in the textbox is because the changes are being canceled but if the value is undesired the it keeps returning focus to the textbox instead of canceling the changes. Is there a way to see what control was clicked on before or in the lost focus event? Can't seem to figure it out tried enter and leave events but no luck!
So for example something like this...
Code:
Private Sub TextBox1_LostFocus(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.LostFocus
If Control that was clicked <> btnCancel then
[Code].....
We've migrated the application from VB 6.0 to VB.Net If more than one MDI child form is open, a mouse click to an inactive form will not bring it to front unless I click on the Tiltlebar.
View 4 RepliesThere is a panel which contains 2 components: a label and a TreeView. The hierarchy, obviously, looks like this:panel1 // handles Enter event
- label1
- treeView1
I need to do some UI updates when user starts interacting with any of these 3 controls. My attempted strategy was to catch the Enter event of the panel, which would fire when user clicks a label, or TreeView. This way, I can write only one (1) event handler instead of several. While it worked for the TreeView, it didn't work for the label. When I click the label, I don't get the Enter event on the panel. Whats different about the label control? I could handle the Click event of the label. At the same time, I wonder what the other solutions might be.
In your opinion what API use Spy++ to get the "Rectangle" and "Restored Rect" data of a child control of an external window?I don't think it uses GetWindowPlacement because if I use this API for the main window I obtain the same values of Spy++, but if I use the GetWindowPlacement API to find the position of a control of the window itself, known it Hwnd, I obtain different results as to Spy++ (that are ALWAYS the same results also if I shift the Main window... so I think that are relative data and not absolute data... but they are wrong )
One example:
Spy++ : (620, 473)-(792, 505)
GetWindowPlacement: (615, 450)-(787, 482)
same dimensions... but different pos... and the right pos is the Spy++ pos.
I have a borderless form displayed as a progress object. This is displayed via childform.show().
I'm overriding CS_DROPSHADOW to give it the shadow (pictured), when the form loses focus (parent clicked or another formapplication) the shadow is lost.
How can I keep the form focusedselected similar to a modal form? (I cannot use showdialog due this being called from various threads other than UI) Using Me.TopMost = True works, but obviously puts the form above all others rather than just the parent.
I have achieved for the most part what the users want, which is to be able to have multiple MDIChild forms open at once for example the Child form displaying the data and the Child form displaying the user's manual. The child forms can be resized to some extent and can be moved around within the Parent form. When the user clicks on the title bar of one of the Child forms or selects a menu item opening a new Child form the newly opened Child form or the Child form on which the user has clicked the title bar gets focus.
I also have one Child form which will not scroll with the mouse wheel even when it has focus. Actually there is very little of the form that is not ocvered with controls. It has about 8 group boxes with several otehr controls within the group boxes. When I click on a list box within one of the group boxes the list box will scroll through the values, but when some other control gets the focus or the forms itself has focus (via clicking on the form's title bar)the form will not scroll with the mouse wheel. The other Child forms do scroll with the mouse wheel.The AutoScroll and AutoSize properties of the Child form are both set to true. I also have VerticalScroll and HorizontalScroll visible and enabled properties sey to true
I have MDI application and couple of child windows...This is how I'm opening one child window
Private Sub Membe*******tripMenuItem_Click(sender As System.Object, e As System.EventArgs) Handles Membe*******tripMenuItem.Click
Dim members As New members
members.MdiParent = Me
[code]....
My problem is that I dont have an idea how to check is that form already opened and if it is simply to focus it... Now I can open as many as I want same forms (on the picture this are couple same child forms, what I don't want...So I need simple check is this child form opened and if yes focus it?
If you have a Control contained within another Control and the Child Control has the default Anchoring (Top + Left) AND AutoSize=False (Assuming the control has that Property) changing the Parent Control's Top or Left Padding will not offset the Child Control.If you change the Anchoring of the Child Control to anything other than the default values OR set AutoSize=True, the Control is correctly offset when the Parent Control's Padding values are changed.
View 4 RepliesIs it possible to set focus on the keydown event so after the button control, sets the focus into the keydown? although says often control can have focus,.Putting a button and a keydown event on a form...
View 2 RepliesI am using Visual Basic 2010 Express. I have a program that I need to have work in conjunction with the scanner software that our company uses. how to get my program to watch for when the space bar is hit and I have also figured out how to make sure that my program's "spacebar trigger" only works when the scanner software is running.
The problem is this: If for some reason the user decides to use some other program while the scanner software is running, my program still watches for any time the user hits the spacebar. As a result that triggers the "spacebar trigger." I only want that trigger to fire when the scanner software has focus. How do I do that?
I need a function that returns a control within a form based on a string name. I've tried Jim's method here, but then found out that it will not work with SplitContainers. Therefore, I feel like I need to use a recursive function, or maybe a stack. I've tried many different examples online, but I can't seem to get any to work.
This is the code for the latest try, as taken from here:
Public Function FindControlRecursively(ByVal ParentControl As Control, ByVal ControlTobeSearched As String) As Control
Dim FoundControl As New Control
For Each CurrentControl As Control In ParentControl.Controls
[Code] .....
Note that the above code only seems to return a blank control.
At some point in the past, I have added a TabControl1 to my Form in design, now I can't find. I need to view it so I can make some changes. I have looked in the 'Document Outline' and is not there as well. However, the control must be somewhere because it works fine when I run the program.
View 2 RepliesI have a UserControl that contains other controls that I would like to be able to rearrange or resize at design time. So I have a custom designer for the UserControl that inherits from System.Windows.Forms.Design.ParentControlDesigner, and I call EnableDesignMode on the child controls from within the designer. That way, at design time, I can drag and drop the child controls to move them, or resize them. But I can also drag and drop the child controls somewhere else on the form that is outside of the original UserControl. Is there a way I can limit the child controls from being moved or resized outside the UserControl?
View 1 RepliesI am still messing around with Cntrl/Copy and Paste from a menustrip. Paste is working fine. The copy is working to a certain extent. It will copy the complete text field from one control to another. how do I determine what is the selected text only. My code below:
Private Sub CopyToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles CopyToolStripMenuItem.Click
Dim activeChild As Form = Me.ActiveMdiChild ' Determine the active child form.
Dim activeControl As Control = activeChild.ActiveControl
[code]....
I am having difficulties to obtain the node attribute value while searching for specific word within xml document. I am writing this code to search for specific word within xml document using VB.NET
[Code]...
I am using Visual Basic .Net 2005 professional.From what I understand, I should be disposing of any object that is an unmanaged resource. I understand the best way to tell if a resource is unmanaged is if it has a Dispose method. ie: If I type a dot after my object, intellisense shows .Dispose() as one of the options. If it does, it's an unmanaged resource. Is that correct? In that case, pretty much every control is an unmanaged resource: buttons, forms, panels, etc.In the application I am working on I use an MDIparent container form, which contains MDI children forms, which themselves contain Panels, Menus, Groupboxes, etc, which in turn contain Buttons, Textboxes, Labels, Dropdowns, etc.Do I have to dispose of each button, textbox, label and dropdown within a panel before disposing of the panel?
Do I have to dispose of each panel, menu, and groupbox before disposing of the MDI child form?.Or can I just call the Dispose() method of the MDIchild form and the GarbageCollector will take care of all the controls and resources within the form?Watching the "mem usage" in Windows Task Manager seems to be an unreliable way to detect if I have a memory leak. The numbers just keep climbing and falling (mostly climbing) erratically and without any activity performed on the application. Is there some (relatively) easy way to detect leaks?
So i have a Panel which on Mouse Enter and Mouse Leave i change the visibility of some controls which are docked inside it. Problem is whenever I hover over a control within the panel the Mouse Enter then moves to that indivual control and thus they are made invisible. Is there any way i can make this work without having to code these two events for each control within the panel?
View 1 Repliesway to write the LINQ query. The parent class is simply a student's name and a list of test score data. The child class is a single test score datum. I want to find the worst (or best) score out of all of the TestScore values and then identify the student who had the best score.
Dim query = From s In studentList _
Where s.ScoreList.Select(Function(d) d.TestScore).Min _
= studentList.SelectMany(Function(g) g.ScoreList).Select(Function(h)
[Code].....
Is there any way to find the index number of Child Node.in above shown example is it possible to find Node index of -Node32
View 4 RepliesI am having problem setting focus on specific cell in my Datagridview1 . On Form1 when clicking on cell 3 in any row, I am callig a Dialog1. However, when done working with it, and closing the Dialog1, the focus returns to cell 3 in my Datagridview1 . I like to set the focus on the next cell(4) making it the current cell.
I have tryed :
DataGridView1.SelectionMode = DataGridViewSelectionMode.CellSelect
DataGridView1.CurrentCell = DataGridView1.Item(4, e.RowIndex)
DataGridView1.CurrentCell = DataGridView1.CurrentRow.Cells(4)
And few other things, I am always getting this exception: Operation is not valid because it results in a reentrant call to the SetCurrentCellAddressCore function.
I need to find all the child nodes of a particular node in Infragistics tree view(WebNavigator). it is possible to get the parent() using the available property. But I need the childs. How can i access the childs of that particular node. I am using asp.net 2.0 with VB.Net. T
View 1 Replies