Visual Basic

Indra PR30-Dec-08 23:58

30-Dec-08 23:58

Like this?

Me.ListBox1.SelectedItem = "item1"

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jigneshDPatel31-Dec-08 1:09

jigneshDPatel

31-Dec-08 1:09

Ya But that's not work

Jon_Boy31-Dec-08 2:33

31-Dec-08 2:33

Press F1 and review the help for the listbox so that you understand the basic events and properties of the control.

Any suggestions, ideas, or 'constructive criticism' are always welcome.

"There's no such thing as a stupid question, only stupid people." - Mr. Garrison

Pasan1481-Jan-09 20:54

Pasan148

1-Jan-09 20:54

Try with this

Listbox1.SelectdIndex = 2
This will select third item of your list box

Or

Listbox1.SelectedItem = "CCC"
'CCC' represent the item which include in the listbox

How to create Birthday Events

jigneshDPatel2-Jan-09 1:35

jigneshDPatel

2-Jan-09 1:35

Thanks You for Help
that's Working.....

JC.KaNNaN30-Dec-08 19:09

JC.KaNNaN

30-Dec-08 19:09

Hi,

Im entry level programmer in vb.net.

Now im plane to create birthday event in vb.net..

events all r insert into DB and also Fetch datas from DB...Tis al fin..

But whenever event time ill occur window will appear(show event name)

even application ill close time & windows boot able time..

Give me solution..

Thx in advance

Nanda_MR30-Dec-08 20:29

Nanda_MR

30-Dec-08 20:29

I m not understand this. plz tell properly.

Mycroft Holmes31-Dec-08 0:28

Mycroft Holmes

31-Dec-08 0:28

Your limited grasp of the english language and the mix of text speak in your message makes it totally unreadable. Talk it through with someone to get the language and use the bloody keyboard properly.

Never underestimate the power of human stupidity
RAH

Jon_Boy31-Dec-08 2:28

31-Dec-08 2:28

What the hell are you talking about?

Any suggestions, ideas, or 'constructive criticism' are always welcome.

"There's no such thing as a stupid question, only stupid people." - Mr. Garrison

JC.KaNNaN1-Jan-09 18:46

JC.KaNNaN

1-Jan-09 18:46

Hi,

i have stored some birthday date in DB

For example,

i have stored Jan 10 2009 in DB..

Wen this date will match into system date, automatically show some messages...

Tis is i need

Generate XML file using XML schema in VB.Net 2005

Nanda_MR1-Jan-09 22:47

Nanda_MR

1-Jan-09 22:47

1. When u start-up your project check system date and birthday date and show the list.
2. Use the command button show the Birthday list.
3. Use Timer Show the particular Date & Time that Event.

jaysaran30-Dec-08 18:56

jaysaran

30-Dec-08 18:56

I am in need of generate the XML file using XML schema with VB.net.
Can any one give me the sample code for do this?

Best Regards

Webbrowser.navigate control is parsing url "&"

rss_bateman30-Dec-08 10:52

rss_bateman

30-Dec-08 10:52

Why does the webbrowser.navigate control change my "&" to "&"? It messes up my URL.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim urlString As String
'urlString = "http://www.google.com"
urlString = "http://x.x.x.247/gw-bin/gwgtwy.dll/extAPuser+pass?RQ=FI" + Chr(38) + "TY=TIFF" + Chr(38) + "CO=Sherman" + Chr(38) + "DT=12/29/08" + Chr(38) + "RN=11" + Chr(38) + "BT=005" + Chr(38) + "SE=00470" + Chr(38) + "EQ"
System.Windows.Forms.MessageBox.Show(urlString)
WebBrowser1.Navigate(urlString)

End Sub

At that point I receive an 'Invalid Character' and 'Object Expected' error.

The message box displays correctly but when I call in the control it does this, from MSE debug session:

<html><head><script src="res://mshtml.dll/objectembed_neutral.js"></script></head><body objectSource="http://x.x.x.247/gw-bin/gwgtwy.dll/extAPS1user+pass?RQ=FI&TY=TIFF&CO=Sherman&DT=12/29/08&RN=11&BT=005&SE=00470&EQ" onload="ObjectLoad();" leftmargin=0 topmargin=0 scroll=no> <form id="objectDestination"></form> </body></html>

Thanks!

Re: Webbrowser.navigate control is parsing url "&"

Christian Graus30-Dec-08 18:05

Christian Graus

30-Dec-08 18:05

rss_bateman wrote:
Chr(38)

What is this ugliness ?

Christian Graus

Driven to the arms of OSX by Vista.

Re: Webbrowser.navigate control is parsing url "&"

rss_bateman31-Dec-08 3:25

rss_bateman

31-Dec-08 3:25

Let me simplify the issue, that does look pretty brutal on my part and I'm just now starting to do some development with vb.net so I'm a n00b....

When using the webbrowser.navigate my URL has several variables I must pass in order to retrieve an image.

If I use a simple URL like webbrowser.navigate("http://www.codeproject.com") it works just fine but

If i use an URL with variables like:
webbrowser.navigate("http://www.codeproject.com/script/Forums/Edit.aspx?fid=1646&select=2861396&floc=/script/Forums/View.aspx&fa=r") it does not and returns those 2 messages. When I start a debug session using Microsoft Script Editor the url has been parsed and is using & instead & in the url.

Does this make sense?

Window state problem

Pankaj Garg30-Dec-08 1:49

Pankaj Garg

30-Dec-08 1:49

I have a form , which contains the button , on clicking the button opens a child form. If I again clicks that button , My program does not

open the duplicate instance , But I have a case when there is a usability issue.
If I change the window state of the child form window like I change it to Normal and afterwards I minimize it.
Then my program assumes that the child form state is minimize and change it's state to maximize, But this should not happen ,
So
How should i change the window state to Restore as the window state is presently minimized and restored?

Or

1.What should I do if it was maximized and then it is minimized?
2.What should I do if it is Restored and then it is minimized?

If you have an apple & I have an apple and we exchange our apples, then each of us will still have only one apple but if you have an idea & I have an idea and we exchange our ideas, then each of us will have two ideas!

Re: Window state problem

Jon_Boy30-Dec-08 3:09

Load UserControl from existing DLL file

30-Dec-08 3:09

Pankaj Garg wrote:
I have a form , which contains the button , on clicking the button opens a child form.

What type of apps is this? Is this a MDI app? If not, you might want to show the form with .showdialog.

Post your code so we can see what you're doing.

Any suggestions, ideas, or 'constructive criticism' are always welcome.

"There's no such thing as a stupid question, only stupid people." - Mr. Garrison

Indra PR30-Dec-08 0:12

30-Dec-08 0:12

Hello all, there is a problem that I want to ask:

I have made 2 UserControls using Visual Basic 2005. Let's say the names are UserControl1 and UserControl2 . Both were made under the same project that I name it: WindowsControlLibrary1. On both of them, I put different components, in UserControl1 I use a DataGridView component, and in the other one, I put a TextBox and a Button or something.

After scripting on both of them, I built the project and I got 1 dll file: WindowsControlLibrary1.dll.

Now, I want to make new project, I create 1 MDI form. And I want to make that MDI form to be the parent of 2 MDI child form: UserControl1 and UserControl2 that I can get from WindowsControlLibrary1.dll.

How can I do that, what should I do to get the controls inside the dll file. I want to use it as part of the new project. So that if i call function like: UserControl1.Show(), the UserControl will be appeared under the main form of the new project, and have all function as child form.

Can someone help me? If I could do that, next I want to add the path of the dll inside SQL Server database. When I run the main form, it will read the path, and dinamically run them as the MDI child on runtime.

Thanks

Best Regard,
Indra Permana Rusli

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Tom Deketelaere30-Dec-08 0:19

Tom Deketelaere

30-Dec-08 0:19

Indra_PR wrote:
Now, I want to make new project, I create 1 MDI form. And I want to make that MDI form to be the parent of 2 MDI child form: UserControl1 and UserControl2 that I can get from WindowsControlLibrary1.dll.

If your controls are of the type usercontrol you can't do this. You can only add forms as mdi children.

To be able to use the controls you created you have to add a reference to the dll.
Project --> right mouse click --> add reference --> browse to your dll

Indra PR30-Dec-08 0:45

30-Dec-08 0:45

But I don't want to link it when I code the new project, I want to link the project and the dll (add as reference) on runtime. Yesterday, I got a reference, telling to use Assembly.Load() Method.

I've tried to use it but it only succeed when I made my first project as a WindowsApplication and create Forms inside (not UserControl). Then when I deploy the project, I get an exe file and I can use it well with my project. But when I try use the WindowsControlLibrary with a dll output, I cannot do that, the compiler showed me an error.

I don't have my code right now, maybe I'll post it here later.

If possible, can someone give me a reference to use the dll and get the controls inside, or maybe give me an example related to this topic.

Please Wink | ;)

Thanks

Best Regard,
Indra Permana Rusli

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Jon_Boy30-Dec-08 2:48

30-Dec-08 2:48

You have several statements/questions here, some of which are confusing.

Indra_PR wrote:
After scripting on both of them, I built the project and I got 1 dll file: WindowsControlLibrary1.dll.

What scripting are you doing or did you mean compile?

Indra_PR wrote:
How can I do that, what should I do to get the controls inside the dll file. I want to use it as part of the new project. So that if i call function like: UserControl1.Show(), the UserControl will be appeared under the main form of the new project, and have all function as child form.

Normally, you would add a reference and then use the controls you created. If you intend on re-using the same form stle with the controls you created, you might want to make another .dll, create a template form with the custom controls you created and some public properties. You could then create the form (dynamically if really needed) at runtime (and the datagridview would be populated correctly depending on the value of the public properties) regardless where it's called from.

Code for creating assembly dynamically:

Try
    ao = [Assembly].LoadFrom(sFullPathIncludingFileName)
    o = ao.CreateInstance(sAssembly & "." & sClass, True)
Catch ex As Exception
    Throw ex
End Try

Indra_PR wrote:
Can someone help me? If I could do that, next I want to add the path of the dll inside SQL Server database. When I run the main form, it will read the path, and dinamically run them as the MDI child on runtime.

I don't think you would want to do this from a SQL database......doesn't make sense to do so. Generally, when calling a .dll natively from SQL, you want the .dll to be performing a complex operation that would perform better outside of SQL or gain 'easier' access to resources (folders, directories, ftp, email, etc); typically, you wouldn't want to display a GUI app.

Tackle one part at a time and try to remove some of the complexity you got going on.

Any suggestions, ideas, or 'constructive criticism' are always welcome.

"There's no such thing as a stupid question, only stupid people." - Mr. Garrison

Indra PR30-Dec-08 6:59

30-Dec-08 6:59

I made a function like this:

Public Shared Function LoadAssembly(ByVal AssemblyPath As String, ByVal ClassName As String) As Object
        Dim objAssembly As Reflection.Assembly

        objAssembly = Reflection.Assembly.LoadFrom(AssemblyPath)

        Try
            LoadAssembly = objAssembly.CreateInstance(ClassName, True)
        Catch ex As Exception
            MsgBox(ex.Message)
            Return Nothing
        End Try

        If LoadAssembly Is Nothing Then
            MsgBox("Assembly : " & AssemblyPath & vbNewLine & "Class : " & ClassName)
            Return Nothing
        End If
End Function

And I call the function in the form load of the new project:

Dim frm As Form

Try
        frm = LoadAssembly("C:\WindowsControlLibrary1.dll", "WindowsControlLibrary1.Form1")
        Me.IsMdiContainer = True
        frm.MdiParent = Me
        frm.Dock = DockStyle.Fill
        frm.Show()
Catch ex As Exception
        MsgBox(ex.Message)
End Try

In order to make it works, I create 1 form inside the WindowsControlLibrary1.dll that I name it Form1. But when I want to add the UserControl1 inside the form, I don't know what to do next.

Dim usc As Form

Try
        usc = DirectCast(LoadAssembly("C:\WindowsControlLibrary1.dll", "WindowsControlLibrary1.UserControl1"), Form)
        Me.IsMdiContainer = True
        usc.MdiParent = Me
        usc.Dock = DockStyle.Fill
        usc.Show()
Catch ex As Exception
        MsgBox(ex.Message)
End Try

This script returned an error:

Unable to cast object of type 'WindowsControlLibrary1.UserControl1' to type 'System.Windows.Forms.Form'.

I need to add the UserControl1 on my project form. Is there any UserControl Container or something that I should add on my form? D'Oh! | :doh:

Dave Kreskowiak30-Dec-08 7:51

Dave Kreskowiak

30-Dec-08 7:51

The form IS the container. You're trying to treat a UserControl as a Form, which won't work at all.

You really need to rethink your design because what you're trying to do now just isn't going to work. The only option you have, with what you've got now, is to put that usercontrol on a form.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Indra PR31-Dec-08 4:07

31-Dec-08 4:07

Wuaaaa thanks, I've modified my code.

Dim usc As UserControl

Try
    Me.WindowState = FormWindowState.Maximized
    usc = LoadAssembly("C:\WindowsControlLibrary1.dll", "WindowsControlLibrary1.UserControl1")
    usc.Dock = DockStyle.Fill
    Me.Controls.Add(usc)
Catch ex As Exception
    MsgBox(ex.Message)
End Try

It works

Then I add uiBase.vb (UserControl) inside WindowsControlLibrary1, and made the UserControl1 inherits the uiBase. But when I was trying to call with "WindowsControlLibrary1.UserControl1" it failed to load. I've tried to call with parameter "WindowsControlLibrary1.uiBase.UserControl1" too, but it still returned me an error.

Ooooh, I need help here D'Oh! | :doh:

Thanks

Best Regard,
Indra Permana Rusli

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Jon_Boy31-Dec-08 4:37