Here's photo of the form showing the listbox stopping at the edge of the panel when it should extend up past it. I have a project with several panels and a datagridview. I also have some textboxes and buttons. when I click on one of the textboxes, I have a listbox set to be shown and and rezise and locate to just above the textbox but the size I want it to expand to goes beyond the panel and datagrid and that part is not visible.
I've set it to "bring to front" but that doesn't solve the problem
Private Sub txtPayee_Click(sender As Object, e As EventArgs) Handles txtPayee.Click
ListPayee.Show()
ListPayee.BringToFront()
ListPayee.Left = txtPayee.Left
ListPayee.Height = 200
ListPayee.Width = txtPayee.Width
ListPayee.Top = txtPayee.Top - ListPayee.Height
End Sub
Related
How to create multiple button controls with a for loop without getting the controls overlapped and without using location property in Vb.Net.
I have created 'n' number of vb controls dynamically but the created controls are getting overlapped to each other. When I use location property to each controls all the controls are getting displayed as per the location value.
The real problem is, I'm using a panel of width 300 and height 300, under that I need to display the dynamically created controls. I have figured it out which is tedious work and does take a lot of time. My idea is to find the panel width and height then need to check whether the new control which is getting created has ample of space to fit inside the panel.
I need to know few things,
1) How to display the controls dynamically using for loop without getting overlapped over each other and without using location property.
2) I need the container or the panel to grow as per the number of controls which gets created dynamically.
3) Accessing each controls which got displayed using an ID or educate or explain me any better idea.
I created a new WinForms project and added a Button to the top of the form. I added a FlowLayoutPanel under that and made it narrow enough to fit a single Button widthwise. I set the AutoSize property of the FLP to True and the FlowDirection to TopDown. I then added this code:
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
'Create the new Button.
Dim btn As New Button
'Add it to the FLP
FlowLayoutPanel1.Controls.Add(btn)
'Get the position of the bottom, left of the Button relative to the form.
Dim pt = PointToClient(btn.PointToScreen(New Point(0, btn.Height)))
'Resize the form to provide clearance below the new Button.
ClientSize = New Size(ClientSize.Width, pt.Y + 10)
End Sub
I then ran the project and started clicking the Button I added. As expected, each click added a new Button to the FLP in a vertical column and the form resized to fit. In order to access such controls in code, you can simply index the Controls collection of the FLP.
try this helps you.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
'Do Something
Else
'Do Something else
End If
Panel1.Controls.Clear()
For i As Integer = 0 To 10 Step 1
Dim b15 As New Button
b15.Text = "Test3"
b15.ID = "a" & i
AddHandler b15.Click, AddressOf updateFunc
Panel1.Controls.Add(b15)
Next
End Sub
I'm using an UltraGrid which has a ContextMenuStrip with 2 items. These are shown when right-clicking an UltraGridCell.
However, in order to show them, the user has to first click off the cell to take it out of edit mode, then right click on it to show the ContextMenuStripItems.
This has become confusing and irritating to the user, so I was wondering if there is any way that it can be changed to show them when right clicking whilst still in edit mode?
I've tried this to take it out of edit mode after a key is pressed, but it doesn't work.
Private Sub ugComm_keyup(sender As Object, e As KeyEventArgs) Handles ugComm.KeyUp
ugComm.UpdateData()
If ugComm.ActiveCell.IsInEditMode = True Then
ugComm.ActiveCell.Row.Update()
End If
End Sub
I also tried something in the MouseClick that was suggested on the Infragistics forums, but again it didn't work.
Is there any way that a user right-clicking a cell that is in edit mode can bring up the ContextMenuStripItems rather than this menu?
The above image shows what is currently show when right-clicking a cell in edit mode (The cell is the bottom right white cell). I don't want this to appear, but the CMS instead.
EDIT
I've tried the suggestions in the current answers, but neither of those worked for me. Possibly because the grids are a slightly older version?
My most recent effort was done with the following code:
Private Sub ugComm_MouseDown(sender As Object, e As MouseEventArgs) Handles ugComm.MouseDown
If e.Button = Windows.Forms.MouseButtons.Right Then
Me.cmCommRate.Show(mouseX, mouseY)
End If
End Sub
But this wasn't triggered until the cell was no longer in edit mode.
NEITHER OF THE ANSWERS BELOW RESOLVE THE ISSUE. STILL NEEDS AN ANSWER
When any cell of the grid enters in edit mode a TextBox is drawn over the cell. The nice part here is this text box is reused for all the cells in the grid. When you right click on the cell in edit mode the default context menu, that comes from MS, shows. What you need to do is get this text box and assign it your context menu strip. You can do this by handling ControlAdded event of the grid like this:
' create a field to store the TextBox
Private cellTextBox As TextBox
Private Sub grid_ControlAdded(sender As Object, e As ControlEventArgs) Handles grid.ControlAdded
' Check if added control is TextBox
If TypeOf e.Control Is TextBox Then
' If added control is TextBox store it in your private field and set its ContextMenuStrip
If Me.cellTextBox Is Nothing Then
Me.cellTextBox = DirectCast(e.Control, TextBox)
Me.cellTextBox.ContextMenuStrip = Me.ctx
End If
End If
End Sub
I have tried to write an event handler for the MouseUp event with this code
Private Sub grid_MouseUp(sender As Object, e as MouseEventArgs) Handles grid.KeyUp
grid.PerformAction(UltraGridAction.ExitEditMode)
grid.ContextMenuStrip.Show()
End Sub
and it works.
The ContextMenuStrip was added in code with this text (as example)
ContextMenuStrip ctx = new ContextMenuStrip()
ctx.Items.Add("Test1")
ctx.Items.Add("Test2")
ctx.Items.Add("Test3")
grid.ContextMenuStrip = ctx
I'm using MDI container to run my bussiness application I created for my client.
Since using MDI means that when I open several forms they will still run in background all the time untill I close them manualy.
What I need is to make User Control or anything else that could preview all opened forms in Tab Form so my client can easily close all or some of opened forms without closing a form he is curently viewing.
For now I have used this code, so for now only first clicked item from menu appears as button, but not others clicked menu items.
Private Sub MenuStrip1_ItemClicked(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ToolStripItemClickedEventArgs) Handles MenuStrip1.ItemClicked
Dim Button As New Button
Me.Panel5.Controls.Add(Button)
Button.Text = e.ClickedItem.Name
Button.Width = 50
Button.Height = 25
End Sub
Now I need to write a code to add more buttons bellow, also should add a code for adding buttons only when I click on SubMenu item (The one when is clicked new Form appear).
And also, I should now add a little Close button into previewed User-Button-Control.
From your comments, I understand that your ideas regarding adding buttons at runtime are not too clear and thus I am including a small code which hopefully will help you on this front. Start a new project and put a Panel (Panel5) and a Button (AddButtons) on it, and write this code:
Dim lastButtonIndex, lastLeft, lastTop As Integer
Private Sub Button_Click(sender As System.Object, e As System.EventArgs)
Dim curButton As Button = DirectCast(sender, Button)
If (curButton.Name = "Button1") Then
'do Button1 stuff
End If
'etc.
End Sub
Private Sub addNewButton()
lastButtonIndex = lastButtonIndex + 1
lastLeft = lastLeft + 5
lastTop = lastTop + 5
Dim Button As New Button
With Button
.Name = "Button" + lastButtonIndex.ToString()
.Text = "Button" + lastButtonIndex.ToString()
.Width = 50
.Height = 25
.Left = lastLeft
.Top = lastTop
AddHandler .Click, AddressOf Button_Click
End With
Me.Panel5.Controls.Add(Button)
End Sub
Private Sub ButtonAddButtons_Click(sender As System.Object, e As System.EventArgs) Handles AddButtons.Click
addNewButton()
End Sub
This code will add a new button to the panel every time you click on AddButtons. All the buttons will have an associated Click Event (the same one for all of them): Button_Click. The way to know which button is the current one inside this method is via sender, as shown in the code (you can put as many conditions as buttons. The names are given sequentially starting from 1; but you can take any other property as reference, curButton is the given Button Control).
Bear in mind that one of the problems you have to take care of is the location of the buttons. The code above has a very simplistic X/Y values (Left/Top properties) auto-increase which, logically, will not deliver what you want.
I have a tableLayoutPanel in a form. There are 10 rows and 10 columns in tableLayoutPanel. Each cell contains a button. So there are 100 buttons. When a user clicks on any of the button I want to change the backcolor of that. Particular cell. How can I achieve this?
TableLayoutPanel's cell does not have a property to control background color. Instead, you can put a panel on it, which would in turn host your button. Assuming your buttons are dynamically created and a generic handler is attached to every one of them, the following code will change back color of the panel when the button it hosts is clicked:
Private Sub Button_Click(sender As System.Object, e As System.EventArgs)
CType(sender, Control).Parent.BackColor = Color.Black
End Sub
I have a tab in a windows form called Wafer Map that has three sub-tabs. The First sub-tab is the called Map and has a Load and Skip button. I am trying to set the focus on the Wafer sub-tab on the Load button click. This is the following code I have tried to use.
Private Sub Load_Wafer_Layout_Map_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Load_Wafer_Layout_Map.Click
Wafer_Info.Enabled = True
Wafer_Info.Show()
End Sub
The Wafer_Info.Enabled = True is used to enabled all of the controls on the Wafer tab and works properly when the button is clicked. I have tried using .Focus() and .Show() to bring focus to the next tab but I am not have any luck getting to switch. Anyone have any suggestions?
Just set it:
tabControl.SelectedTab = yourTab
On the Tab Controls Tab Pages, just ensure you name the tab you are attempting to reference. Additionally, see MSDN TabControl.SelectedTab
The code that worked for me is Tab_WaferMap.SelectTab(1). Tab_WaferMap is my main tab and the 1 is the index of the sub tab I wanted to show
I came across this thread as i was looking for a solution to my own focus issue. I have a TabControl with many TabPages. Each TabPage is set to auto scroll due to overflowing content. The problem I ran into was the mouse scroll wheel would not function if the TabPage did not have focus. Since there is not an event for each tab click it made setting focus to each TabPage a challenge. It was not hard, but a challenge none the less. So, here is my code (assuming auto scroll true).
On form load sets focus to main TabPage:
Private Sub frmParent_Load(sender As Object, e As System.EventArgs) Handles Me.Load
TabControl1.TabPages(0).Focus()
End Sub
Sets focus to current TabPage by getting the index then setting focus.
This is triggered by TabControl1.SelectedIndexChange event.
Private Sub TabControl1_SelectedIndexChanged(sender As Object, e As System.EventArgs) Handles TabControl1.SelectedIndexChanged
Dim intTabIndex As Integer = TabControl1.SelectedIndex
TabControl1.TabPages(intTabIndex).Focus()
End Sub
I hope someone find this useful. It was very useful for me.
Joshua
You can also set the Selected Index of the tab (and sub-tab) using a (zero based) numeric value:
TabParent.SelectedIndex = 3
TabSub.SelectedIndex=2