I have the following procedure:
Private Sub btnRptEmployeePayToMarket_MouseDown(ByValsender As Object, ByVal myButton As System.Windows.Forms.MouseEventArgs) Handles btnRptEmployeePayToMarket.MouseDown
Static Toggle As Boolean
If myButton.Button = MouseButtons.Right Then
If Toggle Then
descForm.Hide()
Else
descForm.lblReportTitle.Text = "Ranges to Market"
descForm.txtButtonDescription.Text = "Learn how you are currently paying specific departments or jobs compared to market. "
descForm.Show()
End If
End If
Toggle = Not Toggle
End Sub
Since I have about 9 buttons that will performing the same action, but only changing the text in descForm.lblReportTitle and on descForm.txtButtonDescription, how can I accomplish this?
I thought of turning the sub into a function but I am not sure how to accomplish that.
First, you need to move away from the Toggle flag so that you know when a particular button is toggled or not.
To do this, I keep a Dictionary of Boolean objects, keyed by the name of the button. When the common method is executed, it adds the flag if it does not already exist, uses it to determine the appropriate behavior, and then toggles it.
Here is a rewrite of your code with this logic in place:
Private m_cToggleFlags As New System.Collections.Generic.Dictionary(Of String, Boolean)
Private Sub btnRptEmployeePayToMarket_MouseDown(ByVal sender As Object, ByVal myButton As System.Windows.Forms.MouseEventArgs) Handles btnRptEmployeePayToMarket.MouseDown
ToggleButton(DirectCast(sender, Control).Name, "Ranges to Market", "Learn how you are currently paying specific departments or jobs compared to market.")
End Sub
Private Sub ToggleButton(sButtonName As String, sReportTitle As String, sButtonDescription As String)
If Not m_cToggleFlags.ContainsKey(sButtonName) Then
m_cToggleFlags.Add(sButtonName, False)
End If
If m_cToggleFlags(sButtonName)
descForm.Hide()
Else
descForm.lblReportTitle.Text = sReportTitle
descForm.txtButtonDescription.Text = sButtonDescription
descForm.Show()
End If
m_cToggleFlags(sButtonName) = Not m_cToggleFlags(sButtonName)
End Sub
You could add handlers to this sub.
Private Sub btnRptEmployeePayToMarket_MouseDown(ByValsender As Object, ByVal myButton As System.Windows.Forms.MouseEventArgs) Handles btnRptEmployeePayToMarket.MouseDown, btnAnotherone.MouseDown, etc...
Related
So basically I am asking how to check if the URL of the webbrowser has changed (is diferrent from the previous one).
Thank you.
You can check ...
Sub webbrowser1_Complete(ByVal sender As Object, _
ByVal e As WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
//Webbrowser1.url property to get valu of url
End Sub
Ok from what I can understand from your question this is what I would do. First create a structurethis will allow you to store data that you may want to use again. Next create a Function in this case with a Boolean return that checks to see if WebBrowser1's current url is the same as the one we have stored within our structure.And once you have done that, I would create a new WebBrowser1 Event in this case WebBrowser1_DocumentCompleted to trigger the Function to compare both the WebBrowser1 url textbox and the structures stored string when a web page as completely loaded.
Public Class Form1
Dim urlSettings As urlSetting
Structure urlSetting
Public url As String
End Structure
Private Function checkURL(url As String) As Boolean
Dim changed As Boolean = True
If Not urlSettings.url = url Then
changed = False
End If
Return changed
End Function
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
WebBrowser1.Navigate(New Uri(TextBox1.Text))
End Sub
Private Sub WebBrowser1_DocumentCompleted(sender As Object, e As WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
If Not checkURL(TextBox1.Text) Then
urlSettings.url = TextBox1.Text
MessageBox.Show("The URL has changed")
End If
End Sub
End Class
Of course you can modify so suit your needs, however this should get you on your way. :) MSDN Information Structure: https://msdn.microsoft.com/en-us/library/4ft0z102.aspx WebBrowser Control : https://msdn.microsoft.com/en-us/library/system.windows.forms.webbrowser(v=vs.110).aspx Return Statesments eg Function: https://msdn.microsoft.com/en-us/library/2e34641s.aspx
Hey and sorry for another strange question...
I have 25 UserControls with a Start_Button on each of them - this Start_Button can either be Visible or not depending on whether the UserControl is active. On my form1 I have a Start_All button.
I would like to simulate a click of all the UserControl's Start_Buttons which are visible only.
Instead of simulating click-events expose a method for the start-functionality and call this method from the Start_Button.Click-event. Then you can use this method from wherever you want. On this way your code remains readable and reusable.
You should also provide an Active property in your UserControl which you can simply link to your start-button's Visible-property.
Presuming that the user-controls are in a container-control like Panel:
Public Sub StartAll()
Dim allActiveUserControls =
From uc In controlPanel.Controls.OfType(Of MyUserControlType)()
Where uc.Active
For Each uc In allActiveUserControls
uc.Start()
Next
End Sub
Here is an example for the Active property:
Public Property Active As Boolean
Get
Return StartButton.Visible
End Get
Set(value As Boolean)
StartButton.Visible = value
End Set
End Property
and here are the Start method and the event-handlers:
Public Sub Start()
' Do Something ... '
End Sub
Private Sub StartButton_Click(sender As System.Object, e As System.EventArgs) Handles StartButton.Click
Start()
End Sub
Private Sub Start_All_Click(sender As System.Object, e As System.EventArgs) Handles Start_All.Click
StartAll()
End Sub
My UserControl button disappears when I debug my program. I have checked the code including the designer.vb code countless times there's nothing that makes the button .enabled = false or .visible = false. Any ideas why this is happening?
On my UserControl:
Private Sub btn_Begin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Begin.Click
Start_Race()
End Sub
Public Sub Start_Race()
TimeNow(Past_Time)
TimeNow(Start_Time)
lbl_Start_Time_Driver.Text = Past_Time
btn_Begin.BackColor = Color.Green
btn_Begin.Text = "Started!"
End Sub
Public Property Active_bool As Boolean
Get
Return btn_Begin.Visible
End Get
Set(ByVal value As Boolean)
btn_Begin.Visible = value
End Set
End Property
On Form1:
Private Sub btn_Start_All_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Start_All.Click
Dim allActiveUserControls = From uc_Index In Controls.OfType(Of LapTimerGUI)()
Where uc_Index.Active_bool
For Each User_Control In allActiveUserControls
User_Control.Start_Race()
Next
End Sub
I do Google my head off before I post my ridiculous questions here btw :)
This is strange. Does any MsgBoxes pop up if you add this code to your UserControl:
Private Sub UserControl_ControlRemoved(sender As Object, e As System.Windows.Forms.ControlEventArgs) Handles Me.ControlRemoved
MsgBox("Control Removed!")
End Sub
Private Sub Button2_EnabledChanged(sender As Object, e As System.EventArgs) Handles Button2.EnabledChanged
MsgBox("EnabledChanged!")
End Sub
If so, then you can add a breakpoint to these MsgBoxes and lock at the CallStack (CTRL+L) from where it triggers.
Btw: If the control is removed somehow, .PerformClick() still triggers (for me). Thus I bet, that the control is somehow disabled (Enabled = False).
Lastly, if any container of the button (such as your UserControl) is disabled, the button will be disabled too,
After lots of playing around I finally found the problem!
The value was set to =False in my properties. I'm so blonde! Thanks guys for the help ^_^/
Public Property Active_bool As Boolean
Get
Return btn_Begin.Visible
End Get
Set(ByVal value As Boolean)
btn_Begin.Visible = value
End Set
End Property
Although, Something sets the values to =False ever now and then. Very annoying :3
And I can not set the value to =True in the properties... Only in the hidden designer code...
I've got a System.Windows.Forms.TreeView with HotTracking = True
I wish to set HotTracking to False only in a specific Node.
For example i would like the father to be not clickable and the children to be clickable.
Thank you
"Clickable" is pretty ambiguous. I'll assume you don't want them to be selectable. Which is easy to do with the BeforeSelect event, you can cancel it. For example:
Private Sub TreeView1_BeforeSelect(ByVal sender As Object, ByVal e As TreeViewCancelEventArgs) Handles TreeView1.BeforeSelect
If e.Node.Nodes.Count > 0 Then e.Cancel = True
End Sub
This does not make for a great user interface, the user will be very confuzzled when his click has no effect. You can make it a bit more intuitive by not throwing the click away and automatically selecting a node that you do allow to be selected. Make that look similar to this:
Private Sub TreeView1_BeforeSelect(ByVal sender As Object, ByVal e As TreeViewCancelEventArgs) Handles TreeView1.BeforeSelect
If e.Node.Nodes.Count > 0 Then
e.Cancel = True
Me.BeginInvoke(New Action(Of TreeNode)(AddressOf SelectNode), e.Node.Nodes(0))
End If
End Sub
Private Sub SelectNode(ByVal node As TreeNode)
node.Expand()
node.TreeView.SelectedNode = node
End Sub
Hey all i am in need of some help getting my code working correctly like i am needing it to. Below is my code that when the user click on the textbox, it pops up a keyboard where they can click on any letter and it will type that letter into the textbox. Problem being is i can not seem to get the name of the text box to return so that it knows where to send the letters to.
Order in firing is:
TextBox1_MouseDown
keyboardOrPad.runKeyboardOrPad
kbOrPad.keyboardPadType
ClickLetters
Form1.putIntoTextBox
Form1
Private Sub TextBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles TextBox1.MouseDown
Call keyboardOrPad.runKeyboardOrPad("SHOW") 'Just shows the keyboard
Call kbOrPad.keyboardPadType("PAD", TextBox1)
End Sub
Public Sub putIntoTextBox(ByRef what2Put As String, ByRef whatBox As TextBox)
whatBox.Text = what2Put '<-- has error Object reference not set to an instance of an object. for the whatBox.text
End Sub
kbOrPad class
Dim theBoxName As TextBox = Nothing
Public Sub keyboardPadType(ByRef whatType As String, ByRef boxName As TextBox)
theBoxName = boxName '<-- shows nothing here
Dim intX As Short = 1
If whatType = "PAD" Then
Do Until intX = 30
Dim theButton() As Control = Controls.Find("Button" & intX, True)
theButton(0).Enabled = False
intX += 1
Loop
ElseIf whatType = "KEYB" Then
End If
End Sub
Private Sub ClickLetters(ByVal sender As System.Object, ByVal e As System.EventArgs)
Dim btn As Button = CType(sender, Button)
If btn.Text = "Backspace" Then
Else
Call Form1.putIntoTextBox(btn.Text, theBoxName) 'theBoxName taken from keyboardPadType
End If
End Sub
Some visuals for you:
Pastebin code: http://pastebin.com/4ReEnJB0
make sure that theBoxName is a Module scoped variable, then I would populate it like this giving you the flexibility of implementing a shared TextBox MouseDown Handler:
Private Sub TextBox1_MouseDown(sender As System.Object, e As System.Windows.Forms.MouseEventArgs) Handles TextBox1.MouseDown
Dim tb As TextBox = CType(sender, TextBox)
Call keyboardPadType("PAD", tb)
End Sub
Try something like this
Public Class Form1
Dim myKborPad As New kbOrPad
Private Sub TextBox1_MouseDown(sender As System.Object, e As System.Windows.Forms.MouseEventArgs) Handles TextBox1.MouseDown
Dim tb As TextBox = CType(sender, TextBox)
Call myKborPad.keyboardPadType("PAD", tb)
End Sub
Edit Based on your PasteBin code.
I noticed you already have an instance of your keyboardPadType declared in your Module, use that instead of what I said earlier. That code should look like:
remove:
Dim myKborPad As New kbOrPad
and use the theKbOrPad that you created in your module like this:
Private Sub TextBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles TextBox1.MouseDown
Dim tb As TextBox = CType(sender, TextBox)
Call keyboardOrPad.runKeyboardOrPad("SHOW")
Call theKbOrPad.keyboardPadType("PAD", tb)
'Call kbOrPad.keyboardPadType("PAD", tb)
End Sub
Also about the current error your are getting, you are trying to use the default instance of your Form1 , it isn't the actual Form that you are running, you can code around this by making the method you are trying to use as shared. Like this:
Public Shared Sub putIntoTextBox(ByRef what2Put As String, ByRef whatBox As TextBox)
whatBox.Text = what2Put
End Sub
But however I would actually prefer to put it into your Module like this
Public Sub putIntoTextBox(ByRef what2Put As String, ByRef whatBox As TextBox)
whatBox.Text = what2Put
End Sub
and call it like this
Call putIntoTextBox(btn.Text, theBoxName)
after making above changes your code worked.
First, you should replace the ByRef with ByVal (anytime you don't know whether you should use one or the other, use ByVal).
Secondly, I believe you don't need the method, putIntoTextBox, I think you should be able to do that directly (might be threading problems that prevent it, but I don't think that's likely based on your description). You don't show where Form1 is set (or even if it is), and that's another potential problem.
Finally, the better way to call back into the other class is to use a delegate/lambada.
(I know, no code, but you don't provide enough context for a working response, so I'm just giving text).