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My bad - I spoke too soon about solving the login problem.
When my solution above failed, I started poking around the secure Login page source code as I manually entered Username and Password info on the site.
The actual username value in the Masked input control gets stuffed into the Element's "data-unmasked" Attribute. The Element's Value is an altered variation of the username with "*" fillers replacing all but the last three characters. The form will not login without the "data-unmasked" Attribute being set.
It appears I need to:
- find a way to stuff a new value into an empty Element Attribute
... or ...
- revert to use of the error prone SendKeys option to actually type the username into the input control character by character.
Any hints or tips?
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Hi there!
I'm using the HTMLTextbox from here: [^]
And my Question is how can I change the Font, Fontsize, ....
My Usage:
Private Sub Message_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Message.TextChanged
MessageHTML.Text = Me.Message.GenerateHTML
End Sub
as you can see, everytime my Text in Message is changed my HTML code will be generated, and it works great!
For changing the Font I use:
Private Sub FontBox_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FontBox.SelectedIndexChanged
Message.SelectionFont = New Font(FontBox.Text, FontSize.Text.ToString)
End Sub
And for the Size the same:
Private Sub FontSize_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FontSize.SelectedIndexChanged
Message.SelectionFont = New Font(FontBox.Text, FontSize.Text.ToString)
End Sub
But I don't know how to update my MessageHTML Textfield.
Really hope someone can help!
Thanks
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If you have a question about code from an article, use the forum at the bottom of that article. The author of the code is the person most likely to be able to help you with the code they've written. 
HTML Text Box Control ⇒ Comments[^]
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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In an existing vb.2010 desktop application, I need to have the users select the vendors they work with plus the access 2013 database file they want to use as input into the application. I need to have the users select these options before they do their normal processing.
Thus to add this feature to the application, which would you do:
- Have a new form setup with only these features, and once these options are selected, have the application then call the existing form that starts the application right now?
- Would you add these selections to the existing startup form, and 'gray out' the options the users are used to having? Once the users pick new selections, then enable the original options to work?
Thus can tell me the following:
- Which option you chose and why,
- Let me know if can you think of other options that would be good to use in this situation?
- Show me the code and/or point me to references that will tell me how to accomplish my goal using the option you selected?
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dcof wrote: Which option you chose and why,
Option 2.
Create a form and only create checkboxes that apply for that user. Disabled checkboxes imply that they can be unlocked.
..and they can. Using the "inspect" application from the Windows SDK.
dcof wrote: Show me the code and/or point me to references that will tell me how to
accomplish my goal using the option you selected?
Any tutorial that shows how to create controls dynamically and add them to a form. MSDN has them, CodeProject has them, Google knows them.
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
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dcof wrote: Which option you chose and why
I would subscribe to the Shown-event of the "main window" and show the setup form modally there (by using .ShowDialog() instead of just .Show()) which will prevent input to the "main window" while it's being shown. Why: Because it's the easiest way:
Public Class Form1
Public Sub New()
InitializeComponent()
AddHandler Me.Shown, AddressOf Form1_Shown
End Sub
Private Sub Form1_Shown(sender As Object, e As EventArgs)
Application.DoEvents()
Dim form2 As New Form2()
form2.ShowDialog()
Dim form3 As New Form3()
form3.ShowDialog()
End Sub
End Class
Explanation for Application.DoEvents() in this article:
Immediate display of WinForms using the Shown() event[^]
edit: Just realized I misinterpreted your question slightly. Regarding the actual question, whether to show 1 or 2 "setup forms": I would go for two sequential setup forms. It's more intuitive to the user.
If the brain were so simple we could understand it, we would be so simple we couldn't. — Lyall Watson
modified 4-Jun-15 17:04pm.
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Thank you for your answers so far! However I do have the following additional questions to ask you:
- If I create a new form as you suggested, this new form will now be the first form that a user sees. Thus I would set the new form as the startup correct? If so how do you change the startup project? If not, how would I 'wire' this form into the application so that it displays before the current startup form?
- What should I do to make the 'current' startup form display after the user clicks the button on the new modal form? Basically how do I have the new form call the existing startup form?
- On the existing startup form, is there any kind of logic that I would need to change since it is not the startup form any longer? If so would you let me what I need to change and how would I make the applicable coding changes?
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The application surely has some kind of "main form" which is shown after the "setup form" has been confirmed, right? The code I've shown in my previous message would be an excerpt from the "main form" class. The main form loads and becomes visible but immediately shows the first of the two setup forms and after that has been confirmed, the second setup form will be shown. So, if the current setup form is set as the "startup form" in your project settings, you would change that to the main form instead and incorporate my code example to show the setup forms "from within" the main form.
If the brain were so simple we could understand it, we would be so simple we couldn't. — Lyall Watson
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In a Visual Basic Net 2010 desktop application, I want users to be able to select only of the Access 2013 database files that are located in a network share area. I would like the Access 2013 file names to be in a dropdown list box for the user to be able to select from. I would also like there to be a default Access 2013 file that will be used.
Thus can you show me the code and/or point me to a url (link) that will tell me how to accomplish this goal?
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Would you show me the code and/or point me to url(s) or link(s) that give more detailed code examples how on to accomplish the task I am asking about?
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The first link shows how to get a list of (Access) files. The second link how to work with a listbox.
It is general documentation.
Bastard Programmer from Hell
If you can't read my code, try converting it here[^]
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Hello !
I've used this code to open a form :
Dim frm1 As New Myform1
frm1.Show(Me)
How can I do the same thing , when I doesn't know the form's name at design , but only on runtime.
I have a variable that contains the form's name as string :
Dim frmname as string
What can I do ?
Thank you !
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You can use reflection to search for the Type of the Form and then create an instance of it with Activator (Activator has bad performance compared to other methods but for Form-instantiation it won't matter):
Dim formName As String = "Form1"
Dim formType As Type = Assembly.GetExecutingAssembly().GetTypes().[Single](Function(t) t.Name = formName)
Dim form As Form = DirectCast(Activator.CreateInstance(formType), Form)
In case the Form-class is defined in a different assembly than the assembly in which that code is executing you would have to replace GetExecutingAssembly():
Dim formType As Type = Assembly.GetAssembly(someType).GetTypes().[Single](Function(t) t.Name = formName)
..where "someType" is any Type (static notation) that is defined in the same assembly as the Form.
If the brain were so simple we could understand it, we would be so simple we couldn't. — Lyall Watson
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Thank you friend !
This is working , but on my question I forget something that I should do :
On my original code ( when i know the Form), before I call the
frm1.Show(Me)
I have this instruction :
frm1.MyButton1.Enabled=True
Now , if I use your code , this instruction doesn't work.
Shows an error :
Mybutton1 is not a member of System.Windows.forms.Form
What can I do ?
Thank you !
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Do all Forms which you will create through reflection have such a button?
If the brain were so simple we could understand it, we would be so simple we couldn't. — Lyall Watson
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Then I would pass an "enableButton"-flag as constructor argument to the forms. Activator.CreateInstance(..) has an overload where you can specify an array for the constructor arguments as second argument after the type argument:
Dim enableButton As Boolean = True
Dim form As Form = DirectCast(Activator.CreateInstance(formType, New Object() {enableButton}), Form)
If the brain were so simple we could understand it, we would be so simple we couldn't. — Lyall Watson
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ok , but there are cases when I need to access a control on this form , and this control also is a variable , and its name is known only on runtime.
Is there any way to do this ?
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How would you know which control has to be accessed?
If the brain were so simple we could understand it, we would be so simple we couldn't. — Lyall Watson
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the control name is generated in a string variable.
I just want to get this control , and after I just want to use the enabled property ( so doesn't matter what kind of control is because all have the enabled property ).
But I don't know how to get this control by the name as a string.
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By control name do you mean the member name like MyForm.SomeControl or the Name-property of the control MyForm.SomeControl.Name ?
If the brain were so simple we could understand it, we would be so simple we couldn't. — Lyall Watson
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I mean I have a variable with the control's name for example
cname="MyTextBox1"
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Suggested solution: A custom base class for your forms:
Imports System.Reflection
Imports System.Windows.Forms
Public Class MyBaseForm
Inherits Form
Public Function IsControlEnabled(controlMemberName As String) As Boolean
Dim control As Object = Me.GetType().GetProperty(controlMemberName, BindingFlags.Instance Or BindingFlags.NonPublic Or BindingFlags.Public).GetValue(Me, Nothing)
Return CBool(GetType(Control).GetProperty("Enabled").GetValue(control, Nothing))
End Function
End Class
In case you already have a custom base class for your forms you can just copy that method in there.
In the previously posted code you have to change accordingly from Form to MyBaseForm:
Dim form As MyBaseForm = DirectCast(Activator.CreateInstance(formType), MyBaseForm)
And then you can simply call form.IsControlEnabled("MyControlName") to get the value of the Enabled-property of the control with the specified member-name.
edit: Don't know why I didn't think of that in the first place - it would make sense to implement it as an extension method for the Form-class instead.
If the brain were so simple we could understand it, we would be so simple we couldn't. — Lyall Watson
modified 5-Jun-15 3:36am.
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I am asking this question since this is the first time that I have been asked to work on a vb.net 2010 desktop application.
I have been asked to accomplish the following tasks:
- Add a dropdown list box to ask the user what vendor they want to work with. There will be a default vendor always selected.
- Add a dropdown list box to ask the user what access 2013 database file they would like to work with. A default Access 2013 name will be in the dropdown list box.
Thus can you tell me how to accomplish this goal and/or point me to urls (links) that will tell me how to complete the complete these requests?
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