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Re: Empty Date or DateTime string Dave Kreskowiak7-Jul-05 5:06 Dave Kreskowiak 7-Jul-05 5:06  There's no such thing as an "Empty" date/time field in Access. It either has a valid date/time in it or it's Null. Since your database is doesn't allow Nulls, the only recourse you have is to put in a known bogus, but valid, date/time, such as Jan 1, 1970. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome keys is not working in datagrid Jeeva Jose7-Jul-05 3:41 Jeeva Jose 7-Jul-05 3:41  I could not delete the rows using the delete key. I can delete the rows in other way but I prees the delete key in datagrid nothing to happen property Readonly = True KeyDown KeyPress KeyUP this keys are not working in datagrid OS : XP visualstudio: 2003 VB.net Continue... Re: keys is not working in datagrid Anonymous7-Jul-05 3:47 Anonymous 7-Jul-05 3:47  I may be wrong, but if you are setting the property Readonly = True, than you shouldn't be able to change the data. Perhaps a code sample or more detail of what you are trying to do? Re: keys is not working in datagrid Dave Kreskowiak7-Jul-05 4:58 Dave Kreskowiak 7-Jul-05 4:58  Of course those keys don't work. You set the ReadOnly property of the DataGrid to True! How can you expect to delete something from that which you specified can't be modified? RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome delete row - datagrid error oakleaf7-Jul-05 3:33 oakleaf 7-Jul-05 3:33  I keep getting the following error when trying to delete a row from a dataset using a datagrid (specifically the last row in the datagrid) : An unhandled exception of type 'System.NullReferenceException' occurred in system.windows.forms.dll Additional information: Object reference not set to an instance of an object. Does anyone have a tried and tested method for adding,updating,and deleting rows from a dataset using a datagrid? I have found alot of information, and people seem to have had the same problem, but have not found a solution. using visual basic .net 2003 Re: delete row - datagrid error Jeeva Jose7-Jul-05 3:52 Jeeva Jose 7-Jul-05 3:52  Dim row As Integer Dim str As String row = DataGrid1.CurrentRowIndex DataGrid1.Select(row) Dim myTable As DataTable myTable = DataGrid1.DataSource myTable.Rows.RemoveAt(row) u count how many rows are presented the rows less than 0 exit the fucntion or exit sub Continue... Re: delete row - datagrid error oakleaf7-Jul-05 7:16 oakleaf 7-Jul-05 7:16  Does anyone know of a full tutorial on the the datagrid and databinding? My datagrid still will not delete the last record without crashing. I think it has to do with the primary key of the database now though... OleDbDataAdapter1.FillSchema(ds, SchemaType.Source, "spray_log") OleDbDataAdapter1.ContinueUpdateOnError = True OleDbDataAdapter1.Fill(ds) ds.AcceptChanges() The first line is supposed to keep my autoincrement of the IDNUM working, but when I look at it (IDNUM) in my datagrid, it will sometimes go from 2348 to 2350 instead of 2349. I can see why the command builder would have a hard time. Re: delete row - datagrid error oakleaf7-Jul-05 9:33 oakleaf 7-Jul-05 9:33  Could someone point me towards a good tutorial on troubleshooting/debugging? Re: delete row - datagrid error progload7-Jul-05 10:07 progload 7-Jul-05 10:07  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vsdebug/html/_asug_how_do_i_topics3a_debugging.asp[^] Re: delete row - datagrid error progload7-Jul-05 10:13 progload 7-Jul-05 10:13  http://samples.gotdotnet.com/quickstart/winforms/doc/WinFormsData.aspx#Binding%20to%20a%20DataGrid[^] How to make a chat messenger? SmartSDR7-Jul-05 3:21 SmartSDR 7-Jul-05 3:21  hi guys, I have a question, how to make a chat messenger like yahoo messenger or msn messenger and connected it with the server that use sql server ? How to make the connection between the client that use the application program (messenger) and the server that contains the sql server ? How to make this by using VB.Net ? what is the starting point (what the things that i must know to perform this)? thanks for all Re: How to make a chat messenger? Dave Kreskowiak7-Jul-05 4:54 Dave Kreskowiak 7-Jul-05 4:54  Well, knowledge of TCP/IP would help alot. How to write clients that communicate using sockets, and most of all how to write a multi-threaded socket server. Just search the articles for "CHAT" and you'll come up with a bunch of examples. I fail to see how an SQL Server figures into this, unless you're going to be logging everything everyone says. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome Re: NTFS Anonymous7-Jul-05 1:28 Anonymous 7-Jul-05 1:28  it is the problem with your operating system not the application Re: NTFS Dave Kreskowiak7-Jul-05 4:50 Dave Kreskowiak 7-Jul-05 4:50  First of all, WHY ARE YOU YELLING?? If you're getting a message that says "This application in not a valid Win32 Application," it usually means that the .EXE file you launched is corrupted. You'll have to replace it with a new copy from a known good source. What you're saying about the problem doesn't make much sense though. Are you saying that if you replace the .EXE, then run it, it works the first time, but every time after that this message comes up? Is it possible you have a bad, or dying, hard drive? BTW: What does this have to do with VB.NET? RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome Re: NTFS Member 7666088-Jul-05 22:57 Member 766608 8-Jul-05 22:57  i,m a vb.net programmer & yes when i replace the exe it works & then it gives the same message it's working v.good on any pc with fat32 but not on ntfs and it's not te os or the hardisk so can u help me plz Re: NTFS Dave Kreskowiak9-Jul-05 2:03 Dave Kreskowiak 9-Jul-05 2:03  I have no idea what's wrong. In 20+ years of doing this, I've never seen the problem before. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome Re: NTFS Dave Kreskowiak9-Jul-05 2:04 Dave Kreskowiak 9-Jul-05 2:04  What is your .EXE doing? RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome Re: NTFS 9-Jul-05 2:12 9-Jul-05 2:12  win app connected to sql db Re: NTFS Dave Kreskowiak10-Jul-05 3:05 Dave Kreskowiak 10-Jul-05 3:05  Still have no idea what's wrong. Is there only one machine this happens on or all of your client machines? RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome Re: NTFS Member 76660810-Jul-05 23:35 Member 766608 10-Jul-05 23:35  it works with fat32 pc's but not with ntfs ones thx Ftp with Compact Framework .net Rome057-Jul-05 0:34 Rome05 7-Jul-05 0:34  Hello. I have to develop a ppc application who can handle ftp communication. I tried some ways to do it, but they all failed (with wininet and webrequest). I m using VB.net Compact framework. Does someone have some sources, advices or documentations to provide? Regards, Rome Re: Ftp with Compact Framework .net Anonymous7-Jul-05 9:10 Anonymous 7-Jul-05 9:10  This is what I used to build a ftp client for my compaq IPaq PPC: http://www.gotdotnet.com/Community/UserSamples/Details.aspx?SampleGuid=2152E0BB-4EFD-4517-80E7-AD6F0E2A1603[^] Note: comment out the line in the Open method: m_tcpClient.ReceiveBufferSize = 4096; sockets in the CF don't support setting the Receive buffer. Convert C# to VB.Net at: http://www.developerfusion.com/utilities/convertcsharptovb.aspx[^] Re: Ftp with Compact Framework .net Rome057-Jul-05 23:06 Rome05 7-Jul-05 23:06  It s working ^^. I was on this problem since the beginning of the week. You were very helpful. Thank you very much. Re: Ftp with Compact Framework .net progload7-Jul-05 9:21 progload 7-Jul-05 9:21  Give this a try: http://www.codeproject.com/netcf/pocketremote.asp[^] Increase Icon Size ofr list view Anonymous7-Jul-05 0:26 Anonymous 7-Jul-05 0:26  Hi, Can anyone tell me how to increase the icon size of a listview without increasing the font size is there any way if yes please tell me thanks in advance

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