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VB Forum / General 2 / July 2004large variable in VB6
I have a function that accepts as one of its parameters, a string variable. The string variable is a connection string (which as you can imagine, connection strings can be very long). Anyhow, the connection string is over 300 chars long but get truncated at about 250 chars. Is there a way to set the variable such that it can hold and pass a 300 char string? I've tried: Dim ConnStr as String * 300 but still doesn't work. Is there a llimit in VB6 of 250 chars for a string variable? I don't think there is such a limit for VB.NET but I've got to develop in VB6. Thanks in advance. > . . . anyhow, the connection string is over 300 chars long but > get truncated at about 250 chars. Is there a way to set the > variable such that it can hold and pass a 300 char string? > I've tried: > Dim ConnStr as String * 300 > but still doesn't work. Is there a llimit in VB6 of 250 chars In VB6 a variable length string can hold up to about 2 billion (2 ^ 31) characters, subject to memory availability. Fixed length strings can hold up to about 64K (2 ^ 16) characters. In both cases each character can be anything at all, including all sorts of controls characters. How are you getting the data into the string? And how are you dealing with the string data once you have got it? Post your code. Mike This works for me Dim TestString As String * 350 TestSting = String(349, "A") & String("1", "B") debugprint TestString Marv > I have a function that accepts as one of its parameters, a string > variable. The string variable is a connection string (which as you [quoted text clipped - 11 lines] > > Thanks in advance. > Anyhow, the connection string is over 300 chars long but > get truncated at about 250 chars . . . I'll wait for your response to my earlier message asking for details of your code, but just as an afterthought you wouldn't happen to be getting the string using the Input statement or something similar would you? Mike > I'll wait for your response to my earlier message asking for details of your > code, but just as an afterthought you wouldn't happen to be getting the > string using the Input statement or something similar would you? Line Input statement gladly accepts strings well over 100KB ! Believe me...... :)  Signature/\ preben nielsen \/\ prel@post.tele.dk >Line Input statement gladly accepts strings well > over 100KB ! Believe me...... :) I don't think you understand what I am getting at, Preben. Try this: Dim s1 As String s1 = "So how long is this line?" Mid$(s1, 5) = Chr$(26) Open "c:\test1" For Output As 1 Print #1, s1 Close 1 Print Len(s1) Open "c:\test1" For Input As 1 Print LOF(1) Line Input #1, s1 Close 1 Print Len(s1) Mike > > Anyhow, the connection string is over 300 chars long but > > get truncated at about 250 chars . . . [quoted text clipped - 4 lines] > > Mike Mike, below is the code that's a problem: sjarPM(0) = "datagridmanager\EpicJava.jar;" sjarPM(1) = "xml-apis.jar;" sjarPM(2) = "xercesImpl.jar;" sjarPM(3) = "DiscoveryGateClient.jar;" sjarPM(4) = "csinline.jar;" sjarPM(5) = "log4j.jar;" sjarPM(6) = "datagridmanager\RegistrationLite.jar;" NjarPM = 6 sDiscoveryGateClientHome = "C:\ads\ADSClient1.1" slib = sDiscoveryGateClientHome & "\lib\" sJavaClassPath = "-Djava.class.path=" For i = 0 To NjarPM sJavaClassPath = sJavaClassPath & slib & sjarPM(i) Next i Call DataGridServer.LoadJVM(sJvmPath, sJavaClassPath, sDiscoveryGateClientHomeParam, sPolicy, "") The variable in question is cJavaClassPath which is contatenated to become a really big string (~300 chars) but it keeps getting truncated at about 250 chars (according to the watch list in Visual Sutdio. Is there a way that I can declare sJavaClassPath such that it can retain all the contatenations as it is passed to DataGridServer.LoadJVM? Thanks > sjarPM(0) = "datagridmanager\EpicJava.jar;" > sjarPM(1) = "xml-apis.jar;" [quoted text clipped - 15 lines] >Call DataGridServer.LoadJVM(sJvmPath, sJavaClassPath, >sDiscoveryGateClientHomeParam, sPolicy, "") See comments after Print Len(..... Option Explicit Private Sub Form_Click() Dim sjarPM(6) As String Dim sDiscoveryGateClientHome As String Dim slib As String Dim sJavaClassPath As String Dim NjarPM As Long Dim i As Long sjarPM(0) = "datagridmanager\EpicJava.jar;" sjarPM(1) = "xml-apis.jar;" sjarPM(2) = "xercesImpl.jar;" sjarPM(3) = "DiscoveryGateClient.jar;" sjarPM(4) = "csinline.jar;" sjarPM(5) = "log4j.jar;" sjarPM(6) = "datagridmanager\RegistrationLite.jar;" NjarPM = 6 sDiscoveryGateClientHome = "C:\ads\ADSClient1.1" slib = sDiscoveryGateClientHome & "\lib\" sJavaClassPath = "-Djava.class.path=" For i = 0 To NjarPM sJavaClassPath = sJavaClassPath & slib & sjarPM(i) Next i Print Len(sJavaClassPath) 'Prints 327 on my system For i = 0 To NjarPM sJavaClassPath = sJavaClassPath & slib & sjarPM(i) Next i Print Len(sJavaClassPath) 'Prints 636 on my system For i = 0 To NjarPM sJavaClassPath = sJavaClassPath & slib & sjarPM(i) Next i Print Len(sJavaClassPath) 'Prints 945 on my system For i = 0 To NjarPM sJavaClassPath = sJavaClassPath & slib & sjarPM(i) Next i Print Len(sJavaClassPath) 'Prints 1254 on my system 'Call DataGridServer.LoadJVM(sJvmPath, sJavaClassPath, _ sDiscoveryGateClientHomeParam, sPolicy, "") End Sub Have a good day... Don raoulyserman@yahoo.com (LemonJello)'s wild thoughts were released on 25 Jul 2004 23:40:50 -0700 bearing the following fruit: >> > Anyhow, the connection string is over 300 chars long but >> > get truncated at about 250 chars . . . [quoted text clipped - 30 lines] >become a really big string (~300 chars) but it keeps getting truncated >at about 250 chars (according to the watch list in Visual Sutdio. The watch window may well trim the output to 250 chars but it doesn't mean the variables contents has been trimmed. What do you get if you do a LEN on your variable J >Is >there a way that I can declare sJavaClassPath such that it can retain >all the contatenations as it is passed to DataGridServer.LoadJVM? > >Thanks Jan Hyde SignatureSign on the petshop window.- "Every customer receives a free legless parakeet. No perches necessary" (Gary Hallock) [Abolish the TV License - http://www.tvlicensing.biz/] >I have a function that accepts as one of its parameters, a string > variable. The string variable is a connection string (which as you [quoted text clipped - 7 lines] > > but still doesn't work. As others have said: post code. One question: have you verified that your variable definitely contains the full string before the function is called? > Is there a llimit in VB6 of 250 chars for a > string variable? 250, no. Something in your code is truncating this string. When you find it, you'll do one of two things: A) If the code is yours, you'll smack your forehead and say "Dammit, I forgot about that," or B) If it's code from someone else (or built-in to VB), you'll say "Why the hell did they do that?" Yup, you're right. When I tried to debug using a msgbox to see what string is actually, passed, it was indeed the correct full strong value, so my problem appears to be elsewhere in the code. I've since found ths problem and fixed it. Thanks to all who responded! > >I have a function that accepts as one of its parameters, a string > > variable. The string variable is a connection string (which as you [quoted text clipped - 24 lines] > B) If it's code from someone else (or built-in to VB), you'll say "Why the > hell did they do that?" |
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