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hi,
Everyone know how to freeze panes the datagrid in vb.net? which mean DataGrid with the ability to lock the header row and columns.
Please help!
Regards,
charles
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The DataGrid in 2002 and 2003 doesn't support "Freeze Panes". The DataGridView in 2005 does. The documentation on it is here[^].
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Hello,
I have a windows application that uses a sql server remote database.
Which is the best method to deploy an application that has to connect to a remote server on an another computer, that is part of the LAN Network.
I have been told that during installation the connection will be setup.
At the moment I am using the sqlclient connection. I have my connection string in the app.config. But when the customer installs that want to be able to browse to the server that they will have to connect to.
Well as I have never deployed, I will never know what is best.
Give you could give a short example, i would be most grateful.
Thanks
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Can anybody help me to resolve below issue?
I download one program from internet. The previous program used devcomponents.dotnetbar v4.8 control. I removed the dll in the reference and also deleted the form which used that control. After that I tried to rebuild the solution, I encountered below error message. Please refer. Thanks in advance.
D:\Jackey\localJxc\licenses.licx Could not transform licenses file 'licenses.licx' into a binary resource. (1) : error LC0003 : Unabled to resolve type 'DevComponents.DotNetBar.DotNetBarManager, DevComponents.DotNetBar, Version=4.8.0.0, Culture=neutral, PublicKeyToken=7eb7c3a35b91de04'
Jackey Chen
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Do you have a file called licenses.licx floating about ?
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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How can i increment current cell by adding one to it.
Its vb equivalent is grid.col = grid.col+1
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What sort of container are you using ? A datagrid has a Columns collection, which is numerically indexed, and also by column name.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Dim temp As Integer
temp = 5 / 2 : output = 2
temp = 11/ 2 : output = 6 <- ??
(5/2=2,11/2=5)
why?
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Because you defined temp as an Integer. 11/2 = 5.5, or as an integer, 5. Converting a floating point number to an integer truncates the decimal point and everything after it.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Because it's rounding up, if you want it to always round down, use Math.Floor
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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On 5/2 = 2.5 ==> 2 it is rounded down
On 11/2 = 5.5 ==> 6 it is rounded up
I don't know why, but it is alternating rounding up and down... 3.5->4 4.5->4 ...
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Hi,
is it possible to execute code, saved in a string, while runtime? The Problem is the access to the controls on my Forms. It is for a language-system. I've the controls including property in a String (e.g. "frmMain.cmdEnd.Text") and the target value in another string. How can i access the property of the target control?
Thanks, schachmat
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You can use reflection to find the control and it's property and set it.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Can you give me an example please?
Thanks, schachmat
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Not really, I don't write VB.NET, I'm here only because most questions end up being framework related. But if you google, you'll find lots of examples.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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I only need the right class/methods...  (Or some search-phrases for google...)
Thanks, schachmat
-- modified at 3:57 Friday 22nd September, 2006
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__Dim InfoMember As System.Reflection.MemberInfo
__Dim InfoProperty As System.Reflection.PropertyInfo
__
__For i As Int32 = 1 To Anzahl
____Dim Target As String = (...)
____Dim Value As String = (...)
____Dim Memberr() As String = Split(Target, ".")
____InfoMember = My.Forms.GetType.GetMember(Memberr(0))(0)
____For j As Int16 = 1 To Memberr.Length - 2
______InfoMember = InfoMember.GetType.GetMember(Memberr(j))(0)
____Next j
____InfoProperty = InfoMember.GetType.GetProperty(Memberr(Memberr.Length - 1))
____InfoProperty.SetValue(InfoMember, Value, Nothing)
__Next
This is, what i have coded until now. But there is still an Error inside: InfoMember.GetType doesn't get me the Type of the Member, but gets me the Type "MemberInfo". Now how can i get the Type of the Member, saved in InfoMember??
Thanks, schachmat
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__Dim InfoMember As System.Reflection.MemberInfo
__Dim InfoProperty As System.Reflection.PropertyInfo
__
__For i As Int32 = 1 To Anzahl
____Dim Target As String = (...)
____Dim Value As String = (...)
____Dim Memberr() As String = Split(Target, ".")
____InfoMember = My.Forms.GetType.GetMember(Memberr(0))(0)
____For j As Int16 = 1 To Memberr.Length - 2
______InfoMember = Type.GetType(Split(InfoMember.ToString, " ")(0), True, False).GetMember(Memberr(j))(0)
____Next j
____InfoProperty = Type.GetType(Split(InfoMember.ToString, " ")(0), True, False).GetProperty(Memberr(Memberr.Length - 1))
____InfoProperty.SetValue(InfoMember, Value, Nothing)
__Next
I solved the Problem (blue), but got another one (red): InfoMember isn't right. I need the Member (e.g. My.Forms.frmMain) and not the MemberInfo-structure about it. How can i get the member out of the MemberInfo-structure?
Thanks, schachmat
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Hello and good day
Windows XP Professional allows for "locking" of a computer as opposed to logging out or shutting down. Currently, the network I am on has no Event Sync for this practice whereas it does have them for Logon and Logout.
I'm trying to write a small application that will populate a column in a datagrid with the status of individuals on the network (whether they are in or out of the office). To do this, I need an Event Sync to push out to all network machines that fires when their computer is locked.
Any help would be greatly appreciated. I have also posted in this in a couple other message boards because I'm not 100% certain which board it most pertains to.
Thank you!
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It's possible to do. You'll have to write a small service application that gets installed on each workstation you want to monitor. This montior service will have to create it's own window, then call the Win32 API function WTSRegisterSessionNotification[^] and tell it you want to receive the WM_WTSSESSION_CHANGE[^] message, which BTW, only works with XP and above. In your window code, override WndProc. In there you'll wait for that message to arrive. Look at WPARAM part of the message for that value WTS_SESSION_LOCK and WTS_SESSION_UNLOCK. If you see either of those values, you'll send a message back to your tracking server application.
BTW - Why would you want to do such a thing?
Dave Kreskowiak
Microsoft MVP - Visual Basic
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There is an application the company I work for uses to do many things - one among them being monitoring atttendance. Currently the attendance system is flawed in that it only checks for events fired via Logon and Logoff. However, if somebody simply doesn't log off they can circumvent the whole process.
It isn't at all that we care a great deal about the attendance itself - although we do - it's simply that with the sort of business we do, we need to be in constant contact with one another thus we need to know as soon as possible when somebody is away from their desk. Firing an event on lockdown should resolve this issue.
Thank you for the help.
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<soapbox>I'm glad I don't work there! Really, there is no substitute for laying the Mark I EyeBall on someone for attendance purposes.</soapbox>
There are plenty of times where I get into work and don't log into my machine, or any machine for that matter, until 10, 11am, ... Not to mention being in meetings for hours on end.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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I am currently getting a "NullReferenceException: object reference not set to an instance of an object" when I try to check a DataRow("columnname") to see if it is a DBNull.Value. The search works fine when you put a value the is in the DB, but when you try to search for an invalid record, it gives me the NullReferenceError. I tried to do a New DataRow, as most NullRefs i've came across stem from missing the New keyword, but it looks like thats not the right way to go. Any suggestions would be appreciated. The line of code that gives the error is "If drCustomersSearch("MortgageNumber") Is DBNull.Value Then"
SqlConnection1.Open()
SqlDataAdapter1.Fill(DsNameandAddress, "NameandAddress")
SqlConnection1.Close()
If txtSearch.Text = "" Then
MessageBox.Show("You must type in a Mortgage Number" & Chr(13) & " to Search For. Try search again.", "Missing Morgage Number", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
Else
Dim dtCustomersUpdate As New DataTable
Dim drCustomersSearch As DataRow
Dim drCustomersSearchNoRow As DataRow
dtCustomersUpdate = DsNameandAddress.Tables.Item("NameandAddress")
drCustomersSearch = dtCustomersUpdate.Rows.Find(txtSearch.Text)
If drCustomersSearch("MortgageNumber") Is DBNull.Value Then
MessageBox.Show("Your entry is not a valid Mortgage number." & Chr(13) & Chr(13) & "Try search again.", "Input Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
txtSearch.Focus()
txtMortgageNumber.Text = ""
Else : txtMortgageNumber.Text = drCustomersSearch("MortgageNumber")
End If
Nathan Lindley, .NET Aficionado
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