Re: read-only - C# Discussion Boards

Re: IDispDataVwDataConn => casting Server Explorer node to this interface

29-Jul-04 8:58

Since it's being imported from a typelib, it is a COM wrapper (RCW) and is an imported interface (just to be sure it was correct, I double-checked). Casting the Object property should work (and obviously doesn't). Have you tried just casting the node itself?

If anything, there is a developer forum for the VSIP (developing and integrating components with VS.NET itself) on the MSDN[^] web site somewhere. You might consider that approach.

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mikker_12329-Jul-04 9:20

mikker_123

29-Jul-04 9:20

As said in first post I tried casting both Object and node... unsuccesfuly. Also I found extensibility newsgroup (microsoft.public.vstudio.extensibility) with same subject but no answer (guys came as close as I did). Google search => also founde one unfinished discussion. So I guess I should just quit it...? Smile | :)

read-only

Anonymous28-Jul-04 12:17

28-Jul-04 12:17

how do I check if a file with a given path is read only?

mikker_12328-Jul-04 12:22

mikker_123

28-Jul-04 12:22

Use =>

System.IO.File.GetAttributes(string pathToFile);

and then compare it using System.IO.FileAttributes enum...

Anonymous28-Jul-04 12:40

28-Jul-04 12:40

But the following lines never give anything but '1'. How am I to distinguish between read-only and read/write files?

System.IO.FileAttributes att = System.IO.File.GetAttributes( this.currentFolder);
MessageBox.Show(att.CompareTo(System.IO.FileAttributes.ReadOnly)+"");

Heath Stewart28-Jul-04 12:43

28-Jul-04 12:43

Bitwise conditions:

FileAttributes attribs = File.GetAttributes("file.txt");
if ((attribs & FileAttributes.ReadOnly) != 0) Console.WriteLine("Read-only");
else Console.WriteLine("Read-write");

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Anonymous28-Jul-04 12:52

28-Jul-04 12:52

Thank you, but now I only get 'False'. I'm changing the file's read-only attribute by hand because my program does not create or write to these files directly, but my program does need to know if the file it's dealing with is read-only or not. Any suggestions?

Heath Stewart28-Jul-04 12:56

28-Jul-04 12:56

Judging by your variable name, you're trying to get attributes for a directory. Directories don't have a read-only attribute. Only their containing files do. In fact, directories don't really have many attributes at all.

Trust me, the code works. We use it a lot in our application. You might also want to take a look at the FileInfo class which provides the same information in a different way.

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Anonymous28-Jul-04 13:00

Dynamically adding textbox's

28-Jul-04 13:00

your right; I grabed the wrong variable. Thank you.

Adam °Wimsatt28-Jul-04 11:35

Adam °Wimsatt

28-Jul-04 11:35

I have a placeholder sitting on a page with a button above it. When the button is clicked, I want it to add a textbox and
to the placeholder so I have the following code execute for the onclick...

<br />
  TextBox temp = new TextBox();<br />
<br />
  temp.TextMode = TextBoxMode.MultiLine;<br />
  temp.CssClass = "txtArea";<br />
<br />
  temp.ID = "txtArea" + phModNotes.Controls.Count.ToString();<br />
<br />
  phModNotes.Controls.Add(temp);<br />

The expectation being that the controls will be named sequentially starting at txtArea0 and counting up. However, everytime I click the button, phModNotes gets reloaded and is empty.

Re: Dynamically adding textbox's

Nick Parker28-Jul-04 11:39

Help with writing to buffers

28-Jul-04 11:39

This question belongs in the ASP.NET[^] forum.

- Nick Parker
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Winter28-Jul-04 11:11

Winter

28-Jul-04 11:11

Hello all.
I have encountered some difficulties while writing a program that is supposed to use memcpy. To be honest, I can't get it to work at all, and I don't have a clue what I'm doing wrong.

Here's the most important part of the code:

<br />
DllImport("msvcrt.dll")]<br />
public static extern unsafe void memcpy(void* to, void* from, int len);<br />
<br />
[StructLayout(LayoutKind.Explicit)]<br />
private struct Buffer<br />
 {<br />
[FieldOffset(8)]<br />
public byte Buff0;<br />
[FieldOffset(0)]<br />
public int Length;<br />
FieldOffset(4)]<br />
public int Start;<br />
<br />
private static unsafe void CopyToBuffer(Buffer* buffer, byte* data, int len){<br />
if ((( buffer.Length + buffer.Start) + len) >= 262144)<br />
{<br />
throw new NullReferenceException(string.Format("Buffer overflow, or something"));<br />
      }<br />
memcpy(((&buffer.Buff0 + buffer.Start) + buffer.Length), data, len);<br />
buffer.Length += len;<br />
}<br />
}<br />

The errors I get are
"Operator '.' cannot be applied to operand of type Buffer*".
I thought that I declared buffer.Lenght as int, so why isn't it working?

I call CopyToBuffer like:

<br />
buffx = p.Finalize(); //p, being a packet<br />
unsafe {<br />
fixed (byte* buff= buffer1)<br />
{<br />
CopyToBuffer(m_Buffy, buff, buffx.Length);<br />
}<br />
}<br />
return;<br />

m_Buffy is declared as

<br />
private unsafe static Buffer* m_Buffy;<br />

and gets its value on runtime (the address of the recieve buffer).

It's a pretty simple thing, really. I just want to send a text message to a process through its recieve buffer. Smile | :)

I'm a little new to all of this, so I haven't yet fully gotten then hang of API hooking, dll injection and packet filtering and all that which migth have aided me here, but I do my best.

Any response is deeply appreciated. Rose | [Rose]

Re: Help with writing to buffers

Daniel Turini28-Jul-04 11:29

Daniel Turini

28-Jul-04 11:29

Before using memcpy (or whatever variation you may be using), I'd strongly suggest you to take a look at Marshal.Copy method.

Yes, even I am blogging now!

Help Required.

Nasir Wasim28-Jul-04 9:45

Nasir Wasim

28-Jul-04 9:45

Dear Friends
I m making Internet Club Management Software, i Want to ask 2 question's Please help me

How I can Stop / Execution of the Software ruuning on Client Machine.???

How I can Block IP/or unblock IP and banning a site on a client????

Re: Help Required.

Nick Parker28-Jul-04 10:00

How do I create a dynamic webservice client in C#

28-Jul-04 10:00

Your questions are rather vague. To answer your questions, Yes and Yes. Of course, the next logical question now from you would be 'How?'. If you could provide more information, especially about why exactly you are trying to do (beyond what you said above) we could help you. Do you have a specific programming question (i.e., something your stuck on)?

- Nick Parker
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JM9328-Jul-04 9:41

JM93

28-Jul-04 9:41

My requirement is I need to put web service name space/ url in a properties file and invoke the corresponding web service. How can I do that ?

Here is the sample C# code which got generated with a wsdl utility using a wsdl file.
My requirement is I should read that IP addresses, Name, namesapce from a configuration file insteadof hard coding like below. Is that possible? If yes, How?

[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Web.Services.WebServiceBindingAttribute(Name="MyValidationBinding", Namespace="http://33.83.76.254/")]
public class Validation : System.Web.Services.Protocols.SoapHttpClientProtocol
{

/// <remarks>
public Validation()
{
this.Url = "http://33.83.76.254:5556/soap/rpc";
}

/// <remarks>
[System.Web.Services.Protocols.SoapRpcMethodAttribute("", RequestNamespace="http://33.83.76.254/MyValidation", ResponseNamespace="http://33.83.76.254/MyValidation")]
[return: System.Xml.Serialization.SoapElementAttribute("responseXml")]
public string myvalidate(string s1, string s2)
{

Thanks,
jcm

JCM

Re: How do I create a dynamic webservice client in C#

Nick Parker28-Jul-04 9:56

Re: How do I create a dynamic webservice client in C#

28-Jul-04 9:56

Yes, you can even read it from a config file. Read the following for more details: Redirect web services at run time[^].

- Nick Parker
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JM9329-Jul-04 8:00

JM93

29-Jul-04 8:00

Thanks Nick.

But I need to build that as DLL. If I build the DLL how do I deploy the config file with the DLL. Where should we put the config file?

Also, the link talks about only in the constrcutor of the program like below

public Books() {
this.Url = ConfigurationSettings.AppSettings["WebServicesUrl"]
}

but how do we replace the name, namespace values before the method call like below

[System.Web.Services.Protocols.SoapRpcMethodAttribute("", RequestNamespace="http://33.83.76.254/MyValidation", ResponseNamespace="http://33.83.76.254/MyValidation")]
[return: System.Xml.Serialization.SoapElementAttribute("responseXml")]
public string myvalidate(string s1, string s2)
{

Thanks,
JMC

Re: How do I create a dynamic webservice client in C#

Nick Parker29-Jul-04 8:45

29-Jul-04 8:45

The code you are looking at is simply a proxy that was generated from wsdl pointing to your web service. The proxy is what talks to the web service and returns the values to you. You can deply the config file right along with your assembly, within the same directory. The problem is that attributes must be a connstant expression, in other words you can't set thier values by an inline method call or in your case, pointing to the AppSettings to gain dynamic values at runtime. If you read through the comments in that link I sent you, Peter Cook suggest that you set the web reference to dynamic rather than static thus allowing Visual Studio .NET to handle this for you.

- Nick Parker
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WMI Windows Service

silverbullet28-Jul-04 9:12

silverbullet

28-Jul-04 9:12

Hi, I need to check the status of WMI services (running, stopped, or disabled) on a local computer, using System.Management classes in .NET. If anyone knows please update this.

Thank you.

Thank you
Silver Bullet

Re: WMI Windows Service

Heath Stewart28-Jul-04 10:10

How do I disconnect my crystal report from it's datasource

28-Jul-04 10:10

If WMI isn't running, you can't use WMI to check the status of itself. The best way is to use the ServiceController like so:

ServiceController sc = new ServiceController("winmgmt");
if (sc.Status != ServiceControllerStatus.Running)
  sc.Start();

Microsoft MVP, Visual C#
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kornstyle28-Jul-04 8:24

kornstyle

28-Jul-04 8:24

I have made a report using crystal reports.net. I am using a MDB file as my datasource. When I close the form that displays my report, the report is not disconnecting from the datasource. What do I need to do to disconnect the report from it's datasource.

Thanks.

Re: How do I disconnect my crystal report from it's datasource

Heath Stewart28-Jul-04 8:50