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HI,
How can should this issue? I already try all the step you teach me, but still get the same answer. Why can be like that? I wana zip my project to you but I no idea how to attach it to you? Can you give me some advice on this? Thanks.
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Hi
I can't get the MSDN's example for Listbox to work.The example is below. I
get an error in Listbox's sub ListBox1_SelectedValueChanged at row
textBox1.Text = ListBox1.SelectedValue and it happens after the line
ListBox1.ValueMember = "ShortName" is run. The error says Cast from type
'USState' to type 'String' is not valid.
I don't know why the code doesn't work, can anyone please explain what I have to do to make it work.
Thank's
Fia
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Collections
Public Class Form1
Inherits System.Windows.Forms.Form
Public Class USState
Private myShortName As String
Private myLongName As String
Public Sub New(ByVal strlongName As String, ByVal strShortName As String)
MyBase.New()
Me.myShortName = strShortName
Me.myLongName = strLongName
End Sub
Public ReadOnly Property ShortName() As String
Get
Return myShortName
End Get
End Property
Public ReadOnly Property LongName() As String
Get
Return myLongName
End Get
End Property
Public Overrides Function ToString() As String
Return Me.ShortName & " - " & Me.LongName
End Function
End Class
Public Class ListBoxSample3
Inherits Form
Friend WithEvents ListBox1 As ListBox = New ListBox
Dim textBox1 As TextBox = New TextBox
<system.stathreadattribute()> _
Public Shared Sub Main()
System.Windows.Forms.Application.Run(New ListBoxSample3)
End Sub
Public Sub New()
Me.AutoScaleBaseSize = New Size(5, 13)
Me.ClientSize = New Size(292, 181)
Me.Text = "ListBox Sample3"
ListBox1.Location = New Point(24, 16)
ListBox1.Name = "ListBox1"
ListBox1.Size = New Size(232, 130)
textBox1.Location = New Point(24, 160)
textBox1.Name = "textBox1"
textBox1.Size = New Size(40, 24)
Me.Controls.AddRange(New Control() {ListBox1, textBox1})
' Populates the list box using DataSource.
' DisplayMember is used to display just the long name of each state.
Dim USStates As New ArrayList
USStates.Add(New USState("Washington", "WA"))
USStates.Add(New USState("West Virginia", "WV"))
USStates.Add(New USState("Wisconsin", "WI"))
USStates.Add(New USState("Wyoming", "WY"))
ListBox1.DataSource = USStates
ListBox1.DisplayMember = "LongName"
ListBox1.ValueMember = "ShortName"
End Sub
Private Sub InitializeComponent()
End Sub
Private Sub ListBox1_SelectedValueChanged(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles ListBox1.SelectedValueChanged
If ListBox1.SelectedIndex <> -1 Then
textBox1.Text = ListBox1.SelectedValue
End If
End Sub
End Class
End Class
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IF possible can i make application that can search any email address?
Socheat
................
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You'll have to explain what you mean by "search any email address"...
Dave Kreskowiak
Microsoft MVP - Visual Basic
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I mean that I want to search any email address that i don't know, but i just know their name, so i want to search anyemail address that related to theri name.
Thanks
................
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Search what database??
Dave Kreskowiak
Microsoft MVP - Visual Basic
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hello every one
i want to ask about the functions that draw circle or ellips in vb.net i know about the ready functions but i want to rebuild this functions i started with draw circle but i stopped with how i can draw the negative point because setpixel function not valid using this negative point it takes error every time and the ellips too
can any one help me please
thanks alot
noor al-huda
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Why would you like to draw something which is outside of the bitmap?
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Hello.
I've read my text book and it tells me how to use stored procedures but it doesn't tell me what they are, how to create them and how to use the values returned. I've looked through the MSDN and maybe I'm typing in the wrong things cause I cant find the information I want. Can anyone help?
What I am after is:-
1. How can I create stored procedures in Access 2003?
2. What do I do with them in VB.NET 2003
A table I have in a data base is called Houses. It contains a house address, phone number etc. How could I use a stored procedure to find a certain address or to find the next auto-number for my primary key field.
Many Thanks
The FOZ
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Try these links
http://www.devcity.net/Articles/34/msaccess_sp2.aspx
http://www.devcity.net/Articles/18/msaccess_sp.aspx
--Dimple
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Many thanks for those links. I shall try them out.
Ta
The FOZ
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Access doesn't support real stored procedures. It can only handle single statement stored queries, which it called a stored procedure.
A real stored procedure is a set of SQL instructions that manipulates a database, tables, rows, or fields. They can be used to do anything in a database, but especially to perform simplex to very complex database lookups, updates, inserts, or deletes. Stored procedures can return no data, single values, a dataset (records), or multiple datasets (multiple sets of records).
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Sir,
There is no line control in vb.net 1.1 and i want to draw the line at the form .So is there any way to accomplish this task?
Thank You
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Use "Horizontal Rule" from the HTML section from your toolbox 
or just insert an HR tag in your HTML code as follows
<HR style="Z-INDEX: 108; LEFT: 16px; POSITION: absolute; TOP: 256px" width="100%" SIZE="1">
-- modified at 3:10 Thursday 6th July, 2006
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if you want it not for web but for desktop apps then either use a Group control or a Label control that's been collapsed.
otherwise you could go the complex route and physically draw one using System.Drawing namespace.
hope this helps.
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Can u help me for drawing the horizontal or vertical lines in the window application in vb.net1.1
Thanks
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Don't know if its the right way of doing it but you can try this;)
Take a panel control
set the height to 1
set backcolor to black
Try it out
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how can i get list of Email clients installed on my computer ........ in .NET
urgent pls reply if u hav any idea
sanjeev
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by clients do you mean applications that perform email tasks or a list of people stored in your outlook address book?
...yeah, i heard you.
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I want to get the document info in illustrator CS using VB 6.0. Please could u help for me to find this solution.
Regards,
Ashok
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You'll have to get on Adobe's Developer site and look for an Illustrator SDK.
IIRC, Adobe charged $ to subscribe to their Dev site though.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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How to do a HTML Hidden Variable Post in VB.net? without using ASP.
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I am looking for information on getting the RDC for Crystal Reports into a app I am currently developing. I can't find either a reference implementation or even a doc telling what dependecies you need.
Any links or direction I can look to??
Thanks;
David
You are only as good as your last project.
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