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When creating new project choose Class Library type. By the way, you have posted your question in a wrong forum.
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oh i got it, just change output type, thanks buddy,
and i didnt know where to post that question, since i was using C# so i post here
Becoming Programmer...
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Hi
I'm trying to read a csv file into a dataset using the Microsoft Text Driver.
The problem is that the data always gets truncated to 255 characters while all columns can contain up to 700 characters.
The schema.ini file is the following:
<br />
[test.csv]<br />
ColNameHeader=true<br />
Format=Delimited(;)<br />
MaxScanRows=0<br />
CharacterSet=ANSI<br />
COL1" Char Width 700 "<br />
COL2" Char Width 700 "<br />
COL3" Char Width 700 "<br />
COL4" Char Width 700 "<br />
I've tried different datatypes: Memo, Text, LongChar (both with and without the Width specified) and also tried using the OLEDB Jet Driver, but the problem remained.
Any help would be appreciated.
Thanks,
Kristof
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I am almost certain you have already considered this, but the clear way of getting this working would be to parse the .csv file yourself. Csv files are incredibly easy to parse, so this should not be a problem. Sorry that I don't know the easy/correct way to do this.
Sounds like somebody's got a case of the Mondays
-Jeff
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The problem is that Char fields (Char if using the ODBC Text Driver, or Text type if other) are limited to 255 characters, period, end of story. You have to char this to Memo if your field is wider than 255 characters.
On top of that, the format for each of those Coln lines is Coln=columnName type [Width n]. Width is optional. So, you're file would should look something like this:
[test.csv]
ColNameHeader=True
Format=Delimited(;)
MaxScanRows=0
CharacterSet=ANSI
Col1=someColumnName Memo Width 700
Col2=someOtherColumnName Memo Width 700
Col3="some columnName with spaces" Memo Width 700
Col4="some other Colum with spaces" Memo Width 700
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Is it possible to add a reference to a webservice programmatically in a
Windows Form application?
Basically I am looking to provide a list of URLs to the WinForm client which would then add the WebReference, do the discovery, and call a WebMethod.
Any insight would be appreciated.
thanks in advance...
Regards
Pankaj Joshi
If you want to shape your dreams into reality, please wake-up...
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The Web References functionality is actually a part of Visual Studio and it generates the classes you use at design time.
To replicate this functionality in your app would mean you making a code generator to make similar classes at runtime.
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Hi all,
I was looking for a way to Ngen my program on the target system at setup. I found an example on MSDN[^] in Visual Basic. Although I don't know anything about VB, translation usually isn't too hard, but this time I'm finding it difficult.
If anyone could lend me a hand at this that would be great. This is the code concerned:
Private Declare Function GetCORSystemDirectory Lib "mscoree.dll" _
(<runtime.interopservices.marshalas( _<br="" mode="hold" /> System.Runtime.InteropServices.UnmanagedType.LPWStr)> _
ByVal Buffer As System.Text.StringBuilder, _
ByVal BufferLength As Integer, ByRef Length As Integer) As Integer
<security.permissions.securitypermission(security.permissions.securityaction.demand)> _
Public Overrides Sub Install(ByVal savedState As _
System.Collections.IDictionary)
MyBase.Install(savedState)
Dim Args As String = Me.Context.Parameters.Item("Args")
If Args = "" Then
Throw New InstallException("No arguments specified")
End If
' Gets the path to the Framework directory.
Dim Path As New System.Text.StringBuilder(1024)
Dim Size As Integer
GetCORSystemDirectory(Path, Path.Capacity, Size)
Dim P As Process
' Quotes the arguments, in case they have a space in them.
Dim Si As New ProcessStartInfo(Path.ToString() & "ngen.exe", Chr(34) _
& Args & Chr(34))
Si.WindowStyle = ProcessWindowStyle.Hidden
Try
P = Process.Start(Si)
P.WaitForExit()
Catch e As Exception
Throw New InstallException(e.Message)
End Try
End Sub
</security.permissions.securitypermission(security.permissions.securityaction.demand)>
Might be best to check out the code from the MSDN example though, since it provides the proper context. Thanks in advance!
Standards are great! Everybody should have one!
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Thanks, didn't know this site. This actually gives me all but the part I don't understand, which is:
Private Declare Function GetCORSystemDirectory Lib "mscoree.dll" _
(<runtime.interopservices.marshalas( _<br="" mode="hold" /> System.Runtime.InteropServices.UnmanagedType.LPWStr)> _
ByVal Buffer As System.Text.StringBuilder, _
ByVal BufferLength As Integer, ByRef Length As Integer) As Integer
Looks like some kind of P/Invoke signature import or something  . The converter you gave me gets me a "stack empty" error.
Standards are great! Everybody should have one!
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Yes, it looks like a P/Invoke signature. Did you try converting it to c# yourself?
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In the original there is System.Text.StringBuilder, why did you change it with just String? If you've never worked with P/Invoke, I suggest you have a look at this: P/Invoke[^]
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You're absolutely right. Should have noticed that. Take a look at my second try (below) please.
Standards are great! Everybody should have one!
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Ok, I actually got it to compile using:
[DllImport("mscoree.dll")]<br />
static extern int GetCORSystemDirectory(<br />
[System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPStr)] StringBuilder buffer,<br />
Int32 buffer_length,<br />
out Int32 length<br />
);
And then calling the function like this:
<br />
System.Text.StringBuilder Path = new System.Text.StringBuilder(1024);<br />
int Size;<br />
GetCORSystemDirectory(Path, Path.Capacity, out Size);<br />
Still doesn't seem to be working though, can you tell me if the signature is right?
Standards are great! Everybody should have one!
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You should also have notices that original code uses System.Runtime.InteropServices.UnmanagedType.LPWStr and not System.Runtime.InteropServices.UnmanagedType.LPStr
Also, third parameter of GetCORSystemDirectory Function is DWORD* so you should pass a reference to int.
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Ok, thanks for the advice I've updated the code to:
[DllImport("mscoree.dll")]
static extern int GetCORSystemDirectory(
[System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] StringBuilder buffer,
Int32 buffer_length,
ref Int32 length
);
And the call is now like this:
System.Text.StringBuilder Path = new System.Text.StringBuilder(1024);
int Size = 0;
GetCORSystemDirectory(Path, Path.Capacity, ref Size);
Still it's not working  If I could only set a breakpoint to find out why, but this doesn't seem to be supported for installer projects...
Standards are great! Everybody should have one!
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Are you getting an error/exception or is it returning wrong data? Did you turn the stringbuilder into string?
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration.Install;
using System.Runtime.InteropServices;
using System.Text;
using System.Diagnostics;
namespace InstallationHelper
{
[RunInstaller(true)]
public partial class InstallationHelper : Installer
{
[DllImport("mscoree.dll")]
static extern int GetCORSystemDirectory(
[System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] StringBuilder buffer,
Int32 buffer_length,
ref Int32 length
);
public InstallationHelper()
{
InitializeComponent();
}
[System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand)]
public override void Install(System.Collections.IDictionary savedState)
{
base.Install(savedState);
string Args = this.Context.Parameters["Args"];
if (Args == "")
{
throw new InstallException("No arguments specified");
}
System.Text.StringBuilder Path = new System.Text.StringBuilder(1024);
int Size = 0;
GetCORSystemDirectory(Path, Path.Capacity, ref Size);
Process P;
ProcessStartInfo Si = new ProcessStartInfo(Path.ToString() + "ngen.exe", "\"" + Args + "\"");
Si.WindowStyle = ProcessWindowStyle.Maximized;
try
{
P = Process.Start(Si);
P.WaitForExit();
}
catch (Exception e)
{
throw new InstallException(e.Message);
}
}
}
}
Standards are great! Everybody should have one!
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Yes, according to google it looks like a problem with permissions and vista. You could try running it on XP or calling unmanaged function from a normal windows application so that you can set breakpoint.
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Ok, problem solved! Cleaning up seems to be the right thing to do here: Just removing the constructor was enough to get the thing going for some reason  . Thanks a bunch Giorgi, you've been a real help!
Standards are great! Everybody should have one!
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Glad to help you
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I have a dataset with nested tables:
<a>
<b>
<c>
<first>1</first>
<second>2</second>
</c>
</b>
</a>
and I´m trying to write this dataset into a xml file, but I don´t want to write the first element of the dataset. I´m using the dataset1.WriteXml() method. I want the xml file to look like this:
<b>
<c>
<first>1</first>
<second>2<second>
</second></second></c>
</b>
How can I accomplish this? Can anyone help me please?
cellardoor
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Hi all,
I have the following piece of code that adds a new tab to a tabpage control.
...
RichTextBox rtext = new RichTextBox();
rtext.Dock = DockStyle.Fill;
tabControlMain.TabPages[tabControlMain.TabPages.Count-1].Controls.Add(rtext);
...
Now I am trying to load some different file(s) into the newely created richtextboxes found on each of the newely created tabs. And this is were I get stuck. How can I access the RichTextBox created on the new tab and be able to load a file into it??
Can anyone please help??
Many Thanks
Regards,
The only programmers that are better that C programmers are those who code in 1's and 0's ![Green Alien | [Alien]](https://codeproject.freetls.fastly.net/script/Forums/Images/alien.gif)
 Programm3r
My Blog: ^_^
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If there is only richtextbox on the tab and no other controls, you can access it like this: tabControlMain.TabPages[tabControlMain.TabPages.Count-1].Controls[0] Another way is to assign name to the richtextbox before you add it to the tab and access it through its name: tabControlMain.TabPages[tabControlMain.TabPages.Count-1].Controls["richtextboxname"]
Don't forget to cast it to richtextbox.
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