Threading and system.diagnostics - C# Discussion Boards

Re: Insert Multi Rows from Datagridview to another datagridview

20-Feb-14 23:27

Use the SelectedRows property[^] of the first grid, and the Add method[^] of the Rows property[^] to add them to the second grid.

haipt23221-Feb-14 0:08

haipt232

21-Feb-14 0:08

do you have code for this solution,
thanks

Re: Insert Multi Rows from Datagridview to another datagridview

Eddy Vluggen21-Feb-14 0:28

Eddy Vluggen

21-Feb-14 0:28

Try writing it.

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

Re: Insert Multi Rows from Datagridview to another datagridview

Richard MacCutchan21-Feb-14 0:30

How do i load a XML data to a Combobox?

21-Feb-14 0:30

I have given you links to the relevant methods and properties. Surely it is not that difficult to write it for yourself, if you aspire to be a developer.

Member 1061426220-Feb-14 22:24

Member 10614262

20-Feb-14 22:24

XML

hi friends,

I have search this on this net but most XML data they have used only with one attributes. My XML structure as follows and this data is in the file called "CountList.xml"



<Countries>

<Country>

<ISO>USA</ISO>

<Name>United States</Name>

</Country>


<Country>

<ISO>RUS</ISO>

<Name>Russian Federation</Name>

</Country>


<Country>

<ISO>PRC</ISO>

<Name>China</Name>

</Country>

</Countries>



How do I load above data to a combobox, have Display Member as Name and the Value Member as ISO?
Note: I don't want to use any form of LINQ!

Re: How do i load a XML data to a Combobox?

Wayne Gaylard20-Feb-14 22:37

Wayne Gaylard

20-Feb-14 22:37

Your best bet would be to create a Country class with properties Name and ISO and the use the XmlSerializer[^] class to load the file into a collection. Something like this :

XmlSerializer deserializer = new XmlSerializer(typeof(List<Country>));
using (TextReader reader = new StreamReader("yourxmlFile.xml"))
{
    object obj = deserializer.Deserialize(reader);
    List<Country> countries = (List<Country>)obj;
    cboCountries.DataSource = countries;
    cboCountries.DisplayMember = "Name";
    cboCountries.ValueMember = "ISO"; 
}

Hope this helps

When I was a coder, we worked on algorithms. Today, we memorize APIs for countless libraries — those libraries have the algorithms - Eric Allman

Threading and system.diagnostics

Syed Ata-Ur-Rehman20-Feb-14 9:56

Syed Ata-Ur-Rehman

20-Feb-14 9:56

Hi Every body.

I have a scenario in which I have to send series of commands to command prompt. I have achieved It almost using system.diagnostics.Process but when I execute my program in windows XP, it does not behave propely as it behaves in Windows 7.
I am trying to open other applications in interactive mode.Honestly I am able to do it in windows 7 but in win XP process are just started and lives in background. as soon as I close the console they begins to launch one by one. There is something missing in my code which is not letting them launch(Problem is Only in XP).

Following are the steps I'm doing in C# code.

Step #1: Opening command prompt

using (Process process = new Process())
    {
        process.StartInfo.UseShellExecute = false;
        process.StartInfo.RedirectStandardOutput = true;
        process.StartInfo.RedirectStandardError = true;
        process.StartInfo.WorkingDirectory = @"C:\";
        process.StartInfo.FileName = Path.Combine(Environment.SystemDirectory, "cmd.exe");

        // Redirects the standard input so that commands can be sent to the shell.
        process.StartInfo.RedirectStandardInput = true;
        // Runs the specified command and exits the shell immediately.
        //process.StartInfo.Arguments = @"/c ""dir""";

        process.OutputDataReceived += ProcessOutputDataHandler;
        process.ErrorDataReceived += ProcessErrorDataHandler;

        process.Start();
        process.BeginOutputReadLine();
        process.BeginErrorReadLine();

        // Send a directory command and an exit command to the shell

    }

Step 2: Giving commands one by one by using standard input.

I need you people to correct me if I am going in wrong direction.
Please help me identify the problem that who is blocking programs and why they are launching after closing console

Re: Threading and system.diagnostics

Dave Kreskowiak20-Feb-14 13:15

Dave Kreskowiak

20-Feb-14 13:15

Why did you wrap each Process in a using block? You're launching processes incorrectly as you're Disposing the Process object right after you create it and start the Begin...Reads!

It's only by chance that this works under Windows 7.

Create your Processes and keep them in a List<process>. Don't use a using block around them.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: Threading and system.diagnostics

Bernhard Hiller20-Feb-14 22:12

Bernhard Hiller

20-Feb-14 22:12

Syed Ata-Ur-Rehman wrote:
I am trying to open other applications in interactive mode

Then it is not necessary at all to start that command with a "cmd.exe ..." call. Just call the application you need, e.g. process.StartInfo.FileName = Winword.exe

Dll libraries

Blubbo20-Feb-14 3:37

Blubbo

20-Feb-14 3:37

Since that I have created about 15 separate libraries for the main exe, they are in the same folder as exe.

I was thinking of putting those class libraries (DLLs) into a folder called "Libraries" in the main exe folder, so that the directory will look cleaner and organized.

How can I do that so that the exe file can load libraries from "Libraries" folder?

I'm using Visual Studio 2010 Premium.

Re: Dll libraries

Alan N20-Feb-14 6:53

Alan N

20-Feb-14 6:53

To load an assembly from a specified subdirectory of the application's base directory requires a modification to the configuration file.
e.g.

XML

<configuration>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <probing privatePath="Libraries"/>
    </assemblyBinding>
  </runtime>
</configuration>

See probing element[^] at msdn.

The Assembly Fusion log viewer[^] will show all paths searched during assembly loading and is a useful tool to have running, especially if you make a mess of editing the config file. It's helped me out more than once!

Alan.

Re: Dll libraries

Richard MacCutchan20-Feb-14 6:55

DShow.Net Problem With Opening Camera

20-Feb-14 6:55

See http://msdn.microsoft.com/en-us/library/7d83bc18.aspx[^].

BBatts20-Feb-14 2:59

20-Feb-14 2:59

Hello. I'm streaming a webcam using DirectShow. I can open the camera fine on a windows form once. But, If I close the camera and then try to reopen it my code fails on the RenderStream line. Once I restart my application everything is fine again. I'm quite certain I'm freeing everything up, but i'm stumped. Any help would be GREATLY appreciated.

Guid cat = PinCategory.Capture;
       Guid med = MediaType.Video;

       private IBaseFilter sourceBase;
       private IGraphBuilder graph;
       private ICaptureGraphBuilder2 capGraph;
       private ISampleGrabber sg;
       private IMediaControl mc;
       private IBaseFilter grabberBase;
       private VideoInfoHeader videoInfoHeader;

       private const int WM_GRAPHNOTIFY = 0x00008001;
       private const int WS_CHILD = 0x40000000;
       private const int WS_CLIPCHILDREN = 0x02000000;
       private const int WS_CLIPSIBLINGS = 0x04000000;

       private int frameWidth = 320;
       private int frameHeight = 240;

   public bool Start(string SystemID)
       {
           using (DsDevice camDevice = GetDeviceFromMon(SystemID))
           {
               if (camDevice != null)
               {
                   object comObj = null;
                   Guid gbf = typeof(IBaseFilter).GUID;
                   Guid clsid = Clsid.CaptureGraphBuilder2;
                   Guid riid = typeof(ICaptureGraphBuilder2).GUID;

                   AMMediaType media = new AMMediaType();
                   media.majorType = MediaType.Video;
                   media.subType = MediaSubType.RGB24;
                   media.formatType = FormatType.VideoInfo;

                   //Create Source
                   camDevice.Mon.BindToObject(null, null, ref gbf, out comObj);
                   sourceBase = (IBaseFilter)comObj; comObj = null;

                   //Create Graph
                   comObj = Activator.CreateInstance(Type.GetTypeFromCLSID(Clsid.FilterGraph));
                   graph = (IGraphBuilder)comObj; comObj = null;

                   //Create Capture Graph
                   comObj = DsBugWO.CreateDsInstance(ref clsid, ref riid);
                   capGraph = (ICaptureGraphBuilder2)comObj; comObj = null;

                   //Create Grabber
                   comObj = Activator.CreateInstance(Type.GetTypeFromCLSID(Clsid.SampleGrabber));
                   sg = (ISampleGrabber)comObj; comObj = null;

                   mc = (IMediaControl)graph;
                   grabberBase = (IBaseFilter)sg;

                   //Set Graphs/Filters
                   capGraph.SetFiltergraph(graph);
                   graph.AddFilter(sourceBase, "Ds.NET Video Capture Device");
                   sg.SetMediaType(media);
                   graph.AddFilter(grabberBase, "Ds.NET Grabber");

                   //Renter My Stream
                   if (capGraph.RenderStream(ref cat, ref med, sourceBase, null, grabberBase) >= 0)
                   {
                       media = new AMMediaType();
                       if (sg.GetConnectedMediaType(media) >= 0)
                       {
                           if ((media.formatType == FormatType.VideoInfo) && (media.formatPtr != IntPtr.Zero))
                           {
                               videoInfoHeader = (VideoInfoHeader)Marshal.PtrToStructure(media.formatPtr, typeof(VideoInfoHeader));
                               frameWidth = videoInfoHeader.BmiHeader.Width;
                               frameHeight = videoInfoHeader.BmiHeader.Height;

                               Marshal.FreeCoTaskMem(media.formatPtr); media.formatPtr = IntPtr.Zero;

                               sg.SetBufferSamples(false);
                               sg.SetOneShot(false);
                               sg.SetCallback(this, 1);

                               mc.Run();
                           }
                       }
                   }
               }
           }

           return false;
       }

       public void Stop()
       {
           if (mc != null)
           {
               mc.StopWhenReady();
               mc = null;
           }

           if (sg != null)
           {
               sg.SetCallback(null, 0);
               Marshal.ReleaseComObject(sg); sg = null;
           }

           if (grabberBase != null)
               Marshal.ReleaseComObject(grabberBase); grabberBase = null;

           if (capGraph != null)
               Marshal.ReleaseComObject(capGraph); capGraph = null;

           if (graph != null)
               Marshal.ReleaseComObject(graph); graph = null;

           if (sourceBase != null)
               Marshal.ReleaseComObject(sourceBase); sourceBase = null;

           videoInfoHeader = null;
       }

Simon_Whale20-Feb-14 3:30

Simon_Whale

20-Feb-14 3:30

What is the exception that it throws?

Every day, thousands of innocent plants are killed by vegetarians.

Help end the violence EAT BACON

BBatts20-Feb-14 3:56

20-Feb-14 3:56

Thanks for replying. capGraph.RenderStreamdoesn't throw an exception, but it returns -2147024809

Simon_Whale20-Feb-14 4:06

Simon_Whale

20-Feb-14 4:06

http://stackoverflow.com/questions/13100698/unknown-error-on-renderstream[^]

Can I suggest that you have a read of this

Every day, thousands of innocent plants are killed by vegetarians.

Help end the violence EAT BACON

BBatts20-Feb-14 4:25

20-Feb-14 4:25

OK. It tells me parameter is incorrect. That's the exception thrown. Which leads to believe the one of my two IBaseFilters isn't being released. But I don't see where or how.

Eddy Vluggen20-Feb-14 8:06

Eddy Vluggen

20-Feb-14 8:06

if (grabberBase != null)

Why's that there? It should not be disposed before the ReleaseComObject is called.

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

BBatts20-Feb-14 8:08

Re: Joystick Driver Project

20-Feb-14 8:08

I know it's unnecessary -- it's just an old habit. Certainly not what's causing my problem though.

Joystick Driver Project

uddajay20-Feb-14 2:51

uddajay

20-Feb-14 2:51

hello
Can you please send me this source code n C#.net

Richard MacCutchan20-Feb-14 2:55