I am trying to write an onclick event for textbox but VB.net does not seem to support textbox1.click()
I want to open a new form every time someone clicks on the textbox.
Opening a new form is no problem, but I cant detect the click.
Is there any event for textbox that detects click event?
I saw something like TextboxBase that has Click but I am able to use it well.
please help!
This is how my class looks :
Partial Public Class TextBoxClick
Inherits System.Web.UI.Page
End Class
It has some basic load and init events.
I am trying to write a Sub like this :
Private Sub incident_clicked(ByVal sender As Object, ByVal e As System.EventArgs) Handles Incident.OnClick
Incident.Click does not work either.
I am guessing I need to import some class to access the Click event but I am not sure which.
Thanks is advance
TextBox has a Click event, using it is no problem. Your Handles clause however uses OnClick, that's not a valid event name. Do make sure this Sub is inside a Form class and not a module.
Public Class Form1
Private Sub TextBox1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.Click
MessageBox.Show("Click!")
End Sub
End Class
You could use onFocus event :)
According to MSDN, your code should work as follows:
Private Sub TextBox1_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) _
Handles TextBox1.Click
' Code to handle the event here
End Sub
However, you could also try the MouseUp event:
Private Sub textbox1_MouseUp(sender As Object, _
e As System.Windows.Forms.MouseEventArgs) _
Handles textbox1.MouseUp
' Code to handle the event here
End Sub
' Will fire if textbox gets focused
Private Sub incident_GotFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles incident.GotFocus
Debug.Print("inciden got focus")
End Sub
' Will fire if textbox gets mouse clicked
Private Sub incident_MouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles incident.MouseClick
Debug.Print("inciden got clicked")
End Sub
For anyone who is having trouble with this, I fixed it by switching to an asp control. My button now looks like this:
<asp:Button ID="btnSubmit" runat="server" Text="Submit" />
Not sure why, but I now have a working click event.
For me the Textbox_ click event is triggered only when I type a character in that box.
The textbox click event is triggered only when you type a character in that textbox.
That is disgusting. You may want to try mouse-enter mouse-leave events they are more reliable. Babu V Bassa.
Related
I need help to call a function in a usercontrol that is shown in a panel within the form, so far this is i tried, but no luck, i can't still get the text inputted on the textbox
Public Class Form1
Private Sub LinkLabel1_LinkClicked(ByVal sender As System.Object, ByVal e As System.Windows.Forms.LinkLabelLinkClickedEventArgs) Handles LinkLabel1.LinkClicked
Dim ustudent As New StudentAdd
ustudent.Dock = DockStyle.Fill
SplitContainer1.Panel2.Controls.Add(ustudent)
End Sub
Private Sub ToolStripButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton1.Click
ustudent.SaveData()
End If
End Sub
End Class
in user control have some textbox
textbox1 and textbox2
Public Class StudentAdd
Public Sub SaveData() As Boolean
'just testing whether it could work well
' getting textbox value
MsgBox(TextBox1.Text)
End Sub
End Class
But ustudent is a local var, try to declare it outside link_clicked event. Do you want to create multiple user controls in the win or just one?
For one you could add it at design time by dragging from the your project components panel
For more, you should implement some logic to identify the selected component and make it available for save data. If you want to save all just enumerate components in Panel2 (of type StudentAdd) and call the method
I have a function that is called twice and I don't know what to do.
This is the code that is called when I press an input button on a WebBrowser:
Private Sub WebBrowser_DocumentCompleted(ByVal sender As System.Object, ByVal e As WebBrowserDocumentCompletedEventArgs) _
Handles WebBrowser1.DocumentCompleted
Document = sender.Document
AddHandler Document.Click, New HtmlElementEventHandler(AddressOf Document_Click)
End Sub
Private Sub Document_Click(sender As Object, e As HtmlElementEventArgs)
Select Case Document.ActiveElement.Id.ToLower
Case "global" : prueba()
Case Else
End Select
End Sub
If you want to see the function called prueba() here it is: http://pastebin.com/Fi5LLX2N
I have a video where I show it, but the annotations are in Spanish: http://www.youtube.com/watch?v=OCJXk3qJwVA
Well I have another problem with my function, as you can see, on the bottom I have put this:
Else
MsgBox("Este ModPack ya lo tienes instalado!")
End If
But it doesn't work. :(
Try this:
PS: It's written on the fly maybe can have some syntax error.
Private Sub WebBrowser_DocumentCompleted(ByVal sender As System.Object, ByVal e As WebBrowserDocumentCompletedEventArgs) _
Handles WebBrowser1.DocumentCompleted
Document = sender.Document
try : removehandler Document.Click, addressof(Document_Click): catch : end try
AddHandler Document.Click, New HtmlElementEventHandler(AddressOf Document_Click)
End Sub
My immediate reaction is a sticky mouse button, but really it's likely due to the web page you are loading having multiple pages being loaded, thus adding the duplicate event handler. Put a breakpoint on this line of code:
AddHandler Document.Click, New HtmlElementEventHandler(AddressOf Document_Click)
You'll likely see it being hit twice. Make sure to only wire up one HtmlElementEventHandler to avoid the double firing of the click event handler. You can check e.Url for a match before wiring up as a possible solution.
in vb.net there is no need to define onclick in html for button because it is handled automatically.so if you are doing this then the click event will fire twise.
I am working on Infopath and VBA and facing a trivial issue. I have tried searching on this and found a few examples but could not comprehend them correctly (being a novice).
I will really appreciate if any one can push me in the right direction.
I am trying to accomplish executing code for four buttons (button1,2,3,4) by clicking a button called MasterSumbit
I have the event handlers loaded in the InternalStartup section
Private Sub InternalStartup(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Startup
AddHandler DirectCast(EventManager.ControlEvents("Button1"), ButtonEvent).Clicked, AddressOf Button1_Clicked
AddHandler DirectCast(EventManager.ControlEvents("Button2"), ButtonEvent).Clicked, AddressOf Button2_Clicked
...and such for button 3 and 4
AddHandler DirectCast(EventManager.ControlEvents("MasterSubmit"), ButtonEvent).Clicked, AddressOf MasterSubmit_Clicked
End Sub
This is the code for the click event on the MasterSubmit Button
Public Sub MasterSubmit_Clicked(ByVal sender As Object, ByVal e As ClickedEventArgs)
Button1_Clicked.click()
Button2_Clicked.click()
Button3_Clicked.click()
Button4_Clicked.click()
End Sub
I get the following errors for each button
Argument not specified for parameter 'e' of 'Public Sub Button1_Clicked(sender As Object, e As Microsoft.Office.InfoPath.ClickedEventArgs)'.
Argument not specified for parameter 'sender' of 'Public Sub Button1_Clicked(sender As Object, e As Microsoft.Office.InfoPath.ClickedEventArgs)'.
Thanks in anticipation
Try this:
Public Sub MasterSubmit_Clicked(ByVal sender As Object, ByVal e As ClickedEventArgs)
Button1_Clicked.click(sender, e)
Button2_Clicked.click(sender, e)
Button3_Clicked.click(sender, e)
Button4_Clicked.click(sender, e)
End Sub
Would (inside the Sub for Master button) this not work?
Button2.PerformClick()
Button3.PerformClick() etc....
Hope I helped.
Good day,
In my application, I have Private Sub btnSendSMS_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSendMessage.Click in my program.
I would like to simulate a button click of the above within my other sub (an SMS receive detector) when an SMS is received.
How do I do this? I know this is not the best way of doing things but just for the sake of learning. Thanks.
You can call the Button.PerformClick method:
btnSendSMS.PerformClick()
You can call the function directly.
btnSendSMS_Click(Me, EventArgs.Empty)
Why don't you put the code in a seperate method
Private Sub SendSMS()
' do your thing
End Sub
and in your button event handler, call that method.
Private Sub btnSendSMS_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSendMessage.Click
Call SendSMS()
End Sub
Now you can call SendSMS() anywhere in your class without having to do something funky like simulating button clicks.
Or in case of using VB in WPF:
Dim peer As New ButtonAutomationPeer(btnSendSMS)
Dim invokeProv As IInvokeProvider = TryCast(peer.GetPattern(PatternInterface.Invoke), IInvokeProvider)
invokeProv.Invoke()
Here there are two handlers in a particular procedure then how to get which event handler has performed.
for example
Private Sub TextBox1_Events(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged, TextBox1.GotFocus
End Sub
how to get which event has occured.
It is possible using the StackTrace (could be a better way I'm not sure...). Try the following code.
Private Sub TextBox1_Events(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged, TextBox1.GotFocus
Dim s As New StackTrace(True)
For Each f As StackFrame In s.GetFrames
Debug.WriteLine(f.GetMethod.Name)
Next
End Sub
When the text box gets focus the following is written:
TextBox1_Events
OnGotFocus
OnGotFocus
WmSetFocus
Ect…….
Where as when it’s a text changed event
TextBox1_Events
OnTextChanged
OnTextChanged
Ect….
I’m sure you could write something using this to do what you need. But i fully agree with the other guys separate handlers is better.
In this case, you cannot.
If the events were bound to two separate controls, you could check the sender property for the type
If the e argument for the event had some type other than EventArgs (some events use a different arguments type), or the control passed some type derived from EventArgs, then you might be able to check properties on that variable
There aren't any other tricks you could use because events don't provide any sort of data to the handler specifying which event occurred.
With these two events, they're both going to be sent from the same text box, so the first option is out. Also, with both events, they send just an instance of the EventArgs class (not a derived class), so that option is out.
Ultimately, you're going to have to have multiple event handlers to solve this specific problem.
It's not possible. If you're in a situation where you need to know which event occurred, you will always be better off using two separate handlers.
Since you are dealing with 2 events (similar in signature) emitted by the same control the easiest/cleanest way of solving this would be 2 separate event handlers (as suggested by Merlyn Morgan-Graham):
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
'the TextChanged specific code would go here
HandletTextBox1EventInternal(sender, e)
End Sub
Private Sub TextBox1_GotFocus(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.GotFocus
'the GotFocus specific code would go here
HandletTextBox1EventInternal(sender, e)
End Sub
Private Sub HandleTextBox1EventInternal(ByVal sender As System.Object, ByVal e As System.EventArgs)
'code common to GotFocus and TextChanged handlers
End sub