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  • G GunaChinna

    Requirement: I want to create an application, which should be able to create a file, with the file extension be specified by me. And, when i double click to open that file, it should open it's content in that application. How can this be achieved? ( like word,excel..etc) Code so far: For example.. I have created a application with a Richtextbox control to display data,buttons to create a new file, openfile,savefile and to exit. And let my file extension be ".gun". Time to Answer: Now, what happens is i create new file, save(savefiledialog) it with .gun extension. This files gets opened when i open it using 'open(openfiledialog) button' which is present in my application. But when i double this file (which is placed on desktop) it opens only the application and not with the content.? How can i get it with the content when the file is double clicked?

    L Offline
    L Offline
    Lost User
    wrote on last edited by
    #2

    Look for method "Main" in your application. If you have no parameters in it "Main()" then change it to "Main(string[] args)". If you double-click .gun file, then it is like calling using command prompt: MyApplication.exe myFile.gun Just take your .gun file in "args" variable.

    B 1 Reply Last reply
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    • G GunaChinna

      Requirement: I want to create an application, which should be able to create a file, with the file extension be specified by me. And, when i double click to open that file, it should open it's content in that application. How can this be achieved? ( like word,excel..etc) Code so far: For example.. I have created a application with a Richtextbox control to display data,buttons to create a new file, openfile,savefile and to exit. And let my file extension be ".gun". Time to Answer: Now, what happens is i create new file, save(savefiledialog) it with .gun extension. This files gets opened when i open it using 'open(openfiledialog) button' which is present in my application. But when i double this file (which is placed on desktop) it opens only the application and not with the content.? How can i get it with the content when the file is double clicked?

      M Offline
      M Offline
      Mark Porter
      wrote on last edited by
      #3

      You will need to associate the file extension *.gun with your application - the article http://support.microsoft.com/kb/185453 describes for VB but its basicallyde sticking some info in the registry...

      1 Reply Last reply
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      • L Lost User

        Look for method "Main" in your application. If you have no parameters in it "Main()" then change it to "Main(string[] args)". If you double-click .gun file, then it is like calling using command prompt: MyApplication.exe myFile.gun Just take your .gun file in "args" variable.

        B Offline
        B Offline
        bobsugar222
        wrote on last edited by
        #4

        Or just call Environment.GetCommandLineArgs()

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        • G GunaChinna

          Requirement: I want to create an application, which should be able to create a file, with the file extension be specified by me. And, when i double click to open that file, it should open it's content in that application. How can this be achieved? ( like word,excel..etc) Code so far: For example.. I have created a application with a Richtextbox control to display data,buttons to create a new file, openfile,savefile and to exit. And let my file extension be ".gun". Time to Answer: Now, what happens is i create new file, save(savefiledialog) it with .gun extension. This files gets opened when i open it using 'open(openfiledialog) button' which is present in my application. But when i double this file (which is placed on desktop) it opens only the application and not with the content.? How can i get it with the content when the file is double clicked?

          G Offline
          G Offline
          GunaChinna
          wrote on last edited by
          #5

          Hi, When i use Main(string[] args) or Environment.GetCommandLineArgs; it shows me the following error. Error 1 'string' does not contain a definition for 'rtbFile' (Richtextbox instance)

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          • G GunaChinna

            Hi, When i use Main(string[] args) or Environment.GetCommandLineArgs; it shows me the following error. Error 1 'string' does not contain a definition for 'rtbFile' (Richtextbox instance)

            B Offline
            B Offline
            bobsugar222
            wrote on last edited by
            #6

            show us the code.

            G 1 Reply Last reply
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            • B bobsugar222

              show us the code.

              G Offline
              G Offline
              GunaChinna
              wrote on last edited by
              #7

              The error is ok now. and i have done main(string[] args) or Environment.GetCommandLineargs..... But still when i double click the created file(file with .gun extension),, it still doesn't contain the content.

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              • G GunaChinna

                The error is ok now. and i have done main(string[] args) or Environment.GetCommandLineargs..... But still when i double click the created file(file with .gun extension),, it still doesn't contain the content.

                L Offline
                L Offline
                Lost User
                wrote on last edited by
                #8

                Just for example :

                static void Main(string[] args)
                {
                string fileToOpen = args[0]; // it is the same like openFileDialog.FileName

                // Now you MUST open the file "fileToOpen"
                }

                G 1 Reply Last reply
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                • L Lost User

                  Just for example :

                  static void Main(string[] args)
                  {
                  string fileToOpen = args[0]; // it is the same like openFileDialog.FileName

                  // Now you MUST open the file "fileToOpen"
                  }

                  G Offline
                  G Offline
                  GunaChinna
                  wrote on last edited by
                  #9

                  I dont get what u try to say. This is my code. Can u suggest with this code....(ofdFile=Openfiledialog,rtbFile=richtextbox) void btnOpen_Click(object sender, EventArgs e) { ofdFile = new OpenFileDialog(); ofdFile.DefaultExt = @"*.gun"; ofdFile.Filter = @"Gun Files|*.gun"; if (ofdFile.ShowDialog() == System.Windows.Forms.DialogResult.OK && ofdFile.FileName.Length > 0) { //ofdFile.FileName. rtbFile.LoadFile(ofdFile.FileName, RichTextBoxStreamType.PlainText); } }

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                  • G GunaChinna

                    I dont get what u try to say. This is my code. Can u suggest with this code....(ofdFile=Openfiledialog,rtbFile=richtextbox) void btnOpen_Click(object sender, EventArgs e) { ofdFile = new OpenFileDialog(); ofdFile.DefaultExt = @"*.gun"; ofdFile.Filter = @"Gun Files|*.gun"; if (ofdFile.ShowDialog() == System.Windows.Forms.DialogResult.OK && ofdFile.FileName.Length > 0) { //ofdFile.FileName. rtbFile.LoadFile(ofdFile.FileName, RichTextBoxStreamType.PlainText); } }

                    G Offline
                    G Offline
                    GunaChinna
                    wrote on last edited by
                    #10

                    And my main function is in Program.cs file

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                    • G GunaChinna

                      I dont get what u try to say. This is my code. Can u suggest with this code....(ofdFile=Openfiledialog,rtbFile=richtextbox) void btnOpen_Click(object sender, EventArgs e) { ofdFile = new OpenFileDialog(); ofdFile.DefaultExt = @"*.gun"; ofdFile.Filter = @"Gun Files|*.gun"; if (ofdFile.ShowDialog() == System.Windows.Forms.DialogResult.OK && ofdFile.FileName.Length > 0) { //ofdFile.FileName. rtbFile.LoadFile(ofdFile.FileName, RichTextBoxStreamType.PlainText); } }

                      L Offline
                      L Offline
                      Lost User
                      wrote on last edited by
                      #11

                      pass the args[0] to your form class.

                      static void Main(string[] args)
                      {
                      Application.Run(new Form1(args[0]));
                      }

                      For example your form class is Form1. Then change the constructor to

                      public Form1(string fileToBeOpened)
                      {
                      if(fileToBeOpened != string.Empty)
                      {
                      // rtbFile.LoadFile(fileToBeOpened , RichTextBoxStreamType.PlainText);
                      }
                      }

                      G 1 Reply Last reply
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                      • L Lost User

                        pass the args[0] to your form class.

                        static void Main(string[] args)
                        {
                        Application.Run(new Form1(args[0]));
                        }

                        For example your form class is Form1. Then change the constructor to

                        public Form1(string fileToBeOpened)
                        {
                        if(fileToBeOpened != string.Empty)
                        {
                        // rtbFile.LoadFile(fileToBeOpened , RichTextBoxStreamType.PlainText);
                        }
                        }

                        G Offline
                        G Offline
                        GunaChinna
                        wrote on last edited by
                        #12

                        It shows me 'IndexOutOfRangeException Unhandled' in program.cs Application.Run(new Form1(args[0]));

                        L 1 Reply Last reply
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                        • G GunaChinna

                          It shows me 'IndexOutOfRangeException Unhandled' in program.cs Application.Run(new Form1(args[0]));

                          L Offline
                          L Offline
                          Lost User
                          wrote on last edited by
                          #13

                          I think you just COPY and PASTE the code. You must AWARE OF ERRORS. You MUST check if args.Length > 0 // you get the file directly args.Length == 0 // without file

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                          • L Lost User

                            I think you just COPY and PASTE the code. You must AWARE OF ERRORS. You MUST check if args.Length > 0 // you get the file directly args.Length == 0 // without file

                            G Offline
                            G Offline
                            GunaChinna
                            wrote on last edited by
                            #14

                            Yes it works. Thanks a lot.

                            G 1 Reply Last reply
                            0
                            • G GunaChinna

                              Yes it works. Thanks a lot.

                              G Offline
                              G Offline
                              GunaChinna
                              wrote on last edited by
                              #15

                              Will get u back if i get more doubts.

                              1 Reply Last reply
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