启动不同的应用程序

Question

我是C#的新手，但我正在做一个小小的申请。

您可以添加应用程序(使用OpenFileDialog)。它将添加的应用程序链接到一个按钮(提取文件图标和exe名称)。然后，当单击按钮时，它将启动所添加的应用程序。

您可以添加多达5个应用程序(5个按钮)，这一切都可以。但是，如果添加超过1个应用程序，它只打开最后一个添加的应用程序。

因此，如果我添加了Word / Excel / Outlook，它只会打开所有按钮上的Outlook。

我的问题是：

我如何使它，使它记住什么应用程序打开时，按钮被点击。

应用程序屏幕截图，这样您就可以看到：

http://s24.postimg.org/467l561dh/Untitled.png

码

public partial class QuickStarter : Form
{
    public QuickStarter()
    {
        InitializeComponent();
    }

    Icon ico = null;
    OpenFileDialog ofd = new OpenFileDialog();

    private void application1ToolStripMenuItem_Click(object sender, EventArgs e)
    {
        ofd.Filter = "EXE|*.exe";
        ofd.Title = "Add application";

        if (ofd.ShowDialog() == DialogResult.OK)
        {
            ico = Icon.ExtractAssociatedIcon(ofd.FileName);
            button1.Text = Path.GetFileNameWithoutExtension(ofd.FileName);
            button1.Image = ico.ToBitmap();
            button1.Enabled = true;
        }
    }

    private void application2ToolStripMenuItem_Click(object sender, EventArgs e)
    {
        ofd.Filter = "EXE|*.exe";
        ofd.Title = "Add application";

        if (ofd.ShowDialog() == DialogResult.OK)
        {
            ico = Icon.ExtractAssociatedIcon(ofd.FileName);
            button2.Text = Path.GetFileNameWithoutExtension(ofd.FileName);
            button2.Image = ico.ToBitmap();
            button2.Enabled = true;
        }
    }

    private void application3ToolStripMenuItem_Click(object sender, EventArgs e)
    {
        ofd.Filter = "EXE|*.exe";
        ofd.Title = "Add application";

        if (ofd.ShowDialog() == DialogResult.OK)
        {
            ico = Icon.ExtractAssociatedIcon(ofd.FileName);
            button3.Text = Path.GetFileNameWithoutExtension(ofd.FileName);
            button3.Image = ico.ToBitmap();
            button3.Enabled = true;
        }
    }

    private void application4ToolStripMenuItem_Click(object sender, EventArgs e)
    {
        ofd.Filter = "EXE|*.exe";
        ofd.Title = "Add application";

        if (ofd.ShowDialog() == DialogResult.OK)
        {
            ico = Icon.ExtractAssociatedIcon(ofd.FileName);
            button4.Text = Path.GetFileNameWithoutExtension(ofd.FileName);
            button4.Image = ico.ToBitmap();
            button4.Enabled = true;
        }
    }

    private void application5ToolStripMenuItem_Click(object sender, EventArgs e)
    {
        ofd.Filter = "EXE|*.exe";
        ofd.Title = "Add application";

        if (ofd.ShowDialog() == DialogResult.OK)
        {
            ico = Icon.ExtractAssociatedIcon(ofd.FileName);
            button5.Text = Path.GetFileNameWithoutExtension(ofd.FileName);
            button5.Image = ico.ToBitmap();
            button5.Enabled = true;
        }
    }

    private void button1_Click(object sender, System.EventArgs e)
    {
        ProcessStartInfo start = new ProcessStartInfo();
        start.FileName = @ofd.FileName;
        Process.Start(start);
    }

    private void button2_Click(object sender, EventArgs e)
    {
        ProcessStartInfo start = new ProcessStartInfo();
        start.FileName = @ofd.FileName;
        Process.Start(start);
    }

    private void button3_Click(object sender, EventArgs e)
    {
        ProcessStartInfo start = new ProcessStartInfo();
        start.FileName = @ofd.FileName;
        Process.Start(start);
    }

    private void button4_Click(object sender, EventArgs e)
    {
        ProcessStartInfo start = new ProcessStartInfo();
        start.FileName = @ofd.FileName;
        Process.Start(start);
    }

    private void button5_Click(object sender, EventArgs e)
    {
        ProcessStartInfo start = new ProcessStartInfo();
        start.FileName = @ofd.FileName;
        Process.Start(start);
    }

    private void resetApplicationsToolStripMenuItem_Click(object sender, EventArgs e)
    {
            button1.Text = "Application";
            button1.Enabled = false;
            button1.Image = null;
            button2.Text = "Application";
            button2.Enabled = false;
            button2.Image = null;
            button3.Text = "Application";
            button3.Enabled = false;
            button3.Image = null;
            button4.Text = "Application";
            button4.Enabled = false;
            button4.Image = null;
            button5.Text = "Application";
            button5.Enabled = false;
            button5.Image = null;
    }
}

Answer 1

您需要在某个地方实际存储文件名数据，以完成您想要做的事情。目前，您正在对所选的每个应用程序重用OpenFileDialog实例，以便只保存最后选择的文件的信息。

您可以添加一个私有字段来存储此信息。如果你只有5个按钮，一个简单的数组就能工作了。

public partial class QuickStarter : Form
{
    public QuickStarter()
    {
        InitializeComponent();
    }

    Icon ico = null;
    OpenFileDialog ofd = new OpenFileDialog();

    // Added
    string[] fileNames = new string[5];

现在，在您的处理程序中添加一个按钮，您可以添加行

private void application1ToolStripMenuItem_Click(object sender, EventArgs e)
{
    ofd.Filter = "EXE|*.exe";
    ofd.Title = "Add application";

    if (ofd.ShowDialog() == DialogResult.OK)
    {
        ico = Icon.ExtractAssociatedIcon(ofd.FileName);
        button1.Text = Path.GetFileNameWithoutExtension(ofd.FileName);
        button1.Image = ico.ToBitmap();
        button1.Enabled = true;

        // Added Line
        fileNames[0] = ofd.FileName;
    }
}

现在，在单击按钮处理程序中，不是从OpenFileDialog中提取名称，而是从数组中提取名称。

private void button1_Click(object sender, System.EventArgs e)
{
    ProcessStartInfo start = new ProcessStartInfo();
    start.FileName = fileNames[0];
    Process.Start(start);
}

现在您将打开正确的应用程序。只需确保将数组的索引更改为每个处理程序的正确编号。

但是，关于总体设计，您有很多重复的代码。您可能可以将所有这些代码简化为两个事件处理程序，根据object sender是谁来存储数据。这还允许您以后添加或删除按钮，而不必添加或删除其关联的事件处理程序。这也会增加一些额外的逻辑来存储信息。此时，List<string>或Dictionary<string, string>可能比基本数组更有用。

Answer 2

您目前正在使用OpenFileDialogPath运行程序。这意味着您的按钮只适用于上次添加的程序

您要做的是，记住每个按钮的..exe路径如下：

Dictionary<Button,string> _exePaths = new Dictionary<Button,string>();

private void application1ToolStripMenuItem_Click(object sender, EventArgs e)
{
    _userSelectExe(button1);
}

private void application2ToolStripMenuItem_Click(object sender, EventArgs e)
{
    _userSelectExe(button2);
}
and so on

_userSelectExe方法：

private void _userSelectExe(Button button)
{      
    using(OpenFileDialog ofd = new OpenFileDialog())
    {
        ofd.Filter = "EXE|*.exe";
        ofd.Title = "Add application";

        if (ofd.ShowDialog() == DialogResult.OK)
        {
            exePaths[button] = ofd.FileName;
            button.Text = Path.GetFileNameWithoutExtension(ofd.FileName);
            button.Image = Icon.ExtractAssociatedIcon(ofd.FileName).ToBitmap();
            button.Enabled = true; 
        }
    }
}

然后像这样开始每一个：

// Assign this eventhandler to every button
private void _allButton_Click(object sender, EventArgs e)
{
    _startButton((Button) sender);
}


private void _startButton(Button button)
{
    string path;
    if(_exePaths.TryGetValue(button, out path)) 
    {
        ProcessStartInfo start = new ProcessStartInfo();
        start.FileName = path;
        Process.Start(start);
    } else MessageBox.Show("No Exe for this button defined!");
}