Question

我是C＃的新手，但我正在做一些应用程序。

您可以添加应用程序（使用OpenFileDialog）。它将添加的应用程序链接到按钮（提取文件图标和exe名称）。然后，当您单击该按钮时，它将启动您添加的应用程序。

您最多可以添加5个应用程序（5个按钮），这一切都有效。但是如果你添加更多的应用程序，它只会打开最后添加的应用程序。

因此，如果我添加让我们说Word / Excel / Outlook，它将只在所有按钮上打开Outlook。

我的问题是：

如何制作它以便记住单击按钮时要打开的应用程序。

应用截图，以便您可以拥有视觉效果

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

代码

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

您需要将文件名数据存储在某处以执行您想要执行的操作。目前，您正在为所选的每个应用程序重用OpenFileDialog实例，因此仅保存所选最后一个文件的信息。

您可以添加私人字段来存储此信息。如果您只有5个按钮，则可以使用简单的数组。

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

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

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

现在在你的处理程序中添加一个按钮，你会添加一行

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;
    }
}

现在在你的on click按钮处理程序中，而不是从OpenFileDialog中提取名称，而不是从数组中提取它。

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。请务必将每个处理程序的数组索引更改为正确的数字。

关于整体设计，你有很多重复的代码。您可以将所有这些代码减少到两个事件处理程序，根据object sender是谁来存储数据。这也允许您稍后添加或删除按钮，而无需添加或删除其关联的事件处理程序。这还会为存储信息添加一些额外的逻辑。此时，List<string>或Dictionary<string, string>比基本数组更有用。

Answer 2

您当前正在使用OpenFileDialogPath来运行该程序。这意味着您的按钮仅适用于最后添加的程序

你想要做的是，记住每个按钮的.exe-Path，如下所示：

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!");
}

开始不同的应用

2 个答案: