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Software Technology Tips

Sometimes we need to run some system commands from within our program. In such cases the following example can be helpful.

<%-- Button in aspx file --%>

<asp:Button ID="btnCommand" runat="server" Text="Button"
onclick="btnCommand_Click" />

If you click on the button the following event handler will be called and the command line interface would be executed.

// Event handler

    protected void btnCommand_Click(object sender, EventArgs e)
    {
        System.Diagnostics.ProcessStartInfo objProcessStartInfo =
                                                        new System.Diagnostics.ProcessStartInfo("CMD.exe", "/C " + "dir");

// CMD.exe is the name of the file which will execute.

// /C is the path name.

// dir is the command which will execute in command prompt.

objProcessStartInfo.CreateNoWindow = true; // This line will not create any new window for command prompt.
objProcessStartInfo.UseShellExecute = false;

// Set UseShellExecute to specify whether to start the process by using the operating system shell.

        System.Diagnostics.Process objProcess =
                                     System.Diagnostics.Process.Start(objProcessStartInfo);

objProcess.Close();
}

The above example will open the command line interface, but it will not be visible. If you want to make the command prompt visible then assign false to objProcessStartInfo.CreateNoWindow.

Related Tags:
C#, ASP.NET, Command Prompt, CLI

Author: Narendra Mallik

C#

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