i try to resize the picturebox according to the image size.for example if the image width is more than 500 then change the sizemode to stretch and then resize the width to 500.i am using a timer for doing this but i think it's unnecessary and stupid. and also it doesn't work well.
View 3 RepliesI can't do this: [URL]
1. Add PropertyGrid to a form in a new Windows Forms Application
2. Add follow Code
Private Sub PropertyGrid1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles PropertyGrid1.KeyDown
MsgBox(e.KeyCode)
End Sub
3. Run the project
4. Click a key and where is the msgbox ?
I am currently making a game with multiple levels when you complete one level the form hides and shows the form for the next level. But the keydown event doesnt work on the second level. How can I make it work?
View 1 RepliesIn Key Press Event i have put the logic of search in textbox, when i press enter key it will take the values from textbox and brings the data in DataGrid.In another event of GotFocus there is an logic of autocompletestring collection from Table. If i type a in that textbox it will shows all the suggested string in that.If i comment the logic of GotFocus Event for textbox for autocomplete suggestion then only then Key Press events work else its not working.
Code:
Private Sub CustomerName_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles CustomerName.KeyPress
If e.KeyChar = Chr(13) Then
[code].....
See
Public Class Form1
Dim sql As String
Dim conn As New OleDb.OleDbConnection
Dim da As New OleDb.OleDbDataAdapter
[CODE]...
The problem, The INSERT statement works fine in the form load but not in the button click event?
When I use this
[code]...
But for some reason, it doesn't place the image into the picture box.If I use this, and replace it with the first box of code, then it works fine.
[code]...
So, why doesn't it work in my class?
Private Declare Function Beep Lib "kernel32" (ByVal dwFreq As Long, ByVal dwDuration As Long) As Long I've used that API in both vb.net and vb6, but in vb.net doesnt work. Why?
View 7 RepliesWhen I press F7, nothing happens. I got the Virtual Key Codes from here.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If GetAsyncKeyState(76) Then
MsgBox("")
ElseIf GetAsyncKeyState(77) Then
[code]....
I am trying to take a look at the cache of UT2004 through my application since the information holder contains some bugs sometimes and I know how to fix them.
vb.net
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim totalText As String =
[code].....
I'm trying to get the Score of Pinball:
<DllImport("kernel32.dll", SetLastError:=True)> _
Public Function ReadProcessMemory( _
ByVal hProcess As IntPtr, _
ByVal lpBaseAddress As IntPtr, _
<Out()> ByVal lpBuffer() As Byte, _
ByVal dwSize As Integer, _
[Code]...
i need to imports some namespaces but it give me error, why??namespaces are:
Imports Outlook = Microsoft.Office.Interop.Outlook Imports Excel = Microsoft.Office.Interop.Excel i put them before the public class of a form.
This is an mock up only ... but the principal applies to a larger project i am working on...
Basically if you do this:
vb
Dim tstform1 As New Form
Dim tstform2 As New Form
tstform1.Text = "1"
[Code]....
I did a test using AxShockwaveFlash1, and while I set the WMode to Transparent, and tested the form, the transparency didn't work! How am I supposed to make it transparent?
View 1 RepliesI am trying to change the background color of a tooltip
I am using tooltip.backgroundcolor = color.colr
No errors but thecolor doesn't change
I've been working with Regex and I've run into something that doesn't make sense to me; I either misunderstood how the Multiline option works, I'm not using it right, or it really just doesn't work like it's supposed to. This is a little test I made:
[Code]...
i have a simple code that send an e-mail, when i try it running in debug mode it works fine, after compile, i run the exe but the same code doesn't work any more..
View 2 Repliesi have a table layout panel with a background image. in the table there is some panels with transparent back colours. the image shows up in vb designer but when i execute it, it is invisible.
View 6 RepliesEDIT I accidentaly found a walk around to this problem... Adding the following line in the begining of the function solved the problem for some reason.remoteIPAdress = remoteIPAdress & "END"
I have a school assignment where I am supposed to build a simple TCP/IP messenger in Visual Basic.The problem is that when the client sends his IP in a request I've built ("LetMeInXXX.XXX.XXX.XXX"), even if the server receives the request as it should, it parses it completely wrong..
[Code]...
I'm having trouble getting this sub to work on Windows 2003. It works on Windows XP and Windows 7. Windows 2003 has "wininet.dll".
change_proxy("123.115.112.222:3128")
*********************************
Public Sub change_proxy(ByRef proxy_port As String)
[Code].....
So I do not know at design time if the var ms is going to be a stringreader or a memorystream. So I am trying to do basically this:
Dim ms as object = myfunction...
Dim mytype As Type = ms.GetType
Dim returnedobject = ser.Deserialize(CType(ms, mytype))
But I get an error saying "type mytype is not defined". How can I do this?
I have an application that requires data be entered, and after entering, a button is clicked to process that data. Clicking the button works just as it should--the data is processed properly. In constructing a test module, I provide a set of data values, followed by:
btnWhatever.PerformClick()
Nothing happens. I have used this syntax for years, and it has always worked flawlessly. I have triple checked everything else and isolated the problem to the failure of the PerformClick(). The PerformClick() is in a test subroutine that does nothing but fill textboxes and labels with default data, then calls the PerformClick() on the button to begin processing. Again, the button works fine, the data is entered as it should be, but the PerformClick() does not fire the click event.
Basically, what I want to do is create a new control called EncryptedPictureBox. The image path I would be loading into ImageLocation would be the path of a 512 bit encrypted image. Normally if I load this type of file, it will not display. So I want to override Load() so that I can write the encrypted image to a stream, decrypt it, and then display the stream. I'm trying to save processing time so I don't have to grab the encrypted image, save it to disk as a decrypted image, then display it, then when done, delete the decrypted image from disk.
View 11 RepliesB code :
Option Explicit On
Public Class Form1
Public m_adoCnn As ADODB.Connection
Public WithEvents rs As ADODB.Recordset
Private Sub sbWyszukajSQL()
[Code]...
I'm not able to use edit and continue feature while debugging my project. I'm using VB 2008 Express Edition on a 32bit winXP version.
I already check on MSDN and found that this feature can be enable in dialog Tools/Options/Debugging.... However, I do not have a Debugging entry in the treeview in this option dialog. I also used to reset the Import/Export setting features in the tool menue. However this did not solve the problem as well. Then I tried to import some settings and I was able to select the option for debugging. However in the tools/option menu, the debugging feature is still not visible. Edit and Continue is not working as well
Its really a pain to debug with the current setup, as I always have to restart my application when I did some minor changes.
I have a problem. Im trying to create a form that enables a user to add dots on a mouse click event over an office floor plan. I have searched the web and this site but still am struggerling. My aim is to be able to draw dots (purpose is to highlight problems) and polygons over the plan (purpose to define which service area the floor area relates). I want to save all graphics to an access database with associated
fields.
My thinking is to place a second picture box over the first and make this transparent and use this as the user interface? I dont expect anyone to solve this for me, however, any help with how to draw dots and polygons through mouse down or mouse click would be most helpful.
how do i create an event for MouseEnter but instead of the mouse a picturebox?
View 5 RepliesI want to raise an event for an opto-input state change but not sure if I can. Basically I have 4 opto-inputs on a PCI control card - one of which changes pretty rapidly - that I currently poll with a timer. I'm looking at getting a proper hardware counter for that but the other 3 are production status indicators. I'd prefer it if they alerted the app to a state change though.
Depending on the state of one of the inputs I have to fire a relay which simulates a button push. Having been playing with serial ports and getting a very useful app built for logging production data into a SQL Server DB I want to re-visit a proof-of-concept system I built a few months ago.
Current code - which works fine - but I'd like to change is like this:
Private Sub tmrOptoInput_0_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrOptoInput_0.Tick
'Read OptoInput_1 to Monitor Track State...
Dim aType As Byte ' replace Byte with any other type
[code].....
Having 4 inputs so I need 4 timers, plus another one that polls the database and checks a status flag which triggers the app to start logging. I'd like it to be event driven rather than timer driven if at all possible but I don't know how and there's nothing in the control card docs. Also I can't seem to find anything relevant on the web.
I have a picturebox taking input from a WebCam with the SizeMode property set to Stretch. The problem is that there are two strips at the RHS and the bottom with no picture in them. They look suspiciously like they should contain scrollbars (see picture below).[code]....
View 1 RepliesPossible Duplicate: Datagridview doesnt work! I have written code to show records in a datagridview but it shows nothing. I have tried to debug & when it step into GetData function following codes
Catch ex As Exception
returnData = Nothing
If connection.State = ConnectionState.Open Then
connection.Close()
End If
become gray & it shows error sign. When I take my mouse pointer on it it shows message. It says "Cannot open database SUIMT requested by the login. The login failed. Login failed for user 'MY-PCJames'".
Imports System.Data.SqlClient
Public Class Form34
Private Const ConnectionString As String = "Server=.SQLEXPRESS;" & _
"Database=SUIMT;Trusted_Connection=True"
[code]....
So I have 2 data files, single dimension, that I'm trying to populate two rtb. If I comment one streamreader out the other will print. This also works in the vise versa situation. Does anybody see where I'm going wrong with this? They won't run together.
Dim Alpha As New System.IO.StreamReader("alpha.dat")
Dim Beta As New System.IO.StreamReader("beta.dat")
Dim strLine As String
[code].....