Question

这是我的工作代码：

首先在form1的顶部：

int firsttime;
private const int ROW_SIZE = 22;
private int NumberOfRows;
Image ima;
private System.Timers.Timer _refreshTimer;
private int _thisProcess;

然后在构造函数中：

firsttime = 0;
dataGridView1.BackgroundColor = System.Drawing.Color.White;
dataGridView1.Columns["Column2"].DefaultCellStyle.BackColor = System.Drawing.Color.LightGoldenrodYellow;
dataGridView1.Columns["Column3"].DefaultCellStyle.BackColor = System.Drawing.Color.LightGoldenrodYellow;
dataGridView1.AllowUserToAddRows = false;

在form1加载事件中：

private void Form1_Load(object sender, EventArgs e)
        {
            _thisProcess = Process.GetCurrentProcess().Id;
            InitializeRefreshTimer();
            PopulateApplications();
        }

然后定时器init方法我使用定时器来更新进程列表和dataGridView1。

void InitializeRefreshTimer()
        {
            _refreshTimer = new System.Timers.Timer(5000);
            _refreshTimer.SynchronizingObject = this;
            _refreshTimer.Elapsed += new System.Timers.ElapsedEventHandler(TimerToUpdate_Elapsed);
            _refreshTimer.Start();
        }

计时器已用完事件：

void TimerToUpdate_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            PopulateApplications();
        }

PopulateApplications方法：

void PopulateApplications()
        {
            dataGridView1.Rows.Clear();            
            foreach (Process p in Process.GetProcesses())
            {
                if (p.MainWindowTitle.Length > 1)
                {
                    var icon = Icon.ExtractAssociatedIcon(p.MainModule.FileName);
                    ima = icon.ToBitmap();
                    ima = resizeImage(ima, new Size(25, 25));
                    ima.Save(@"c:\temp\ima.jpg");
                    String status = p.Responding ? "Running" : "Not Responding";
                    dataGridView1.Rows.Add(ima,p.ProcessName, status);
                }
            }
            firsttime += 1;
            if (firsttime == 1)
            {
                NumberOfRows = dataGridView1.Rows.Count;
            }
            if (NumberOfRows != dataGridView1.Rows.Count)
            {
                int diff = dataGridView1.Rows.Count - NumberOfRows;
                this.Height = this.Height + (ROW_SIZE * diff);
                NumberOfRows = dataGridView1.Rows.Count;
            }

        }

调整大小图像方法：

public static Image resizeImage(Image imgToResize, Size size)
        {
            return (Image)(new Bitmap(imgToResize, size));
        }

在form1设计器中，我添加了带有9列的dataGridView1，仅用于测试。在设计者中，form1的大小是：652,358 dataGridView1大小为：624,479

现在每次添加新行时，form1 Height会自动调整大小+ = 22。如果删除了一行，那意味着如果我关闭任何app /进程，它将自动更新dataGridView1并删除一行，form1也会自动调整大小。

使用程序Paint检查它。打开它关闭了几次，它工作。

Answer 1

编辑：

我用以下代码替换了原来的答案，因为它更好。您不需要lastValue和currentValue个变量。相反，我使用了一个名为NumberOfRows的变量。我还添加了2个常量ROW_SIZE（添加到每行的表单高度的数量）和BaseFormHeight（没有行时表单的高度）。

private const int ROW_SIZE = 22;

private int NumberOfRows;
private int BaseFormHeight

void PopulateApplications()
{
    dataGridView1.Rows.Clear();

    foreach (Process p in Process.GetProcesses())
    {
        if (p.MainWindowTitle.Length > 1)
        {
            ... add a row to the data grid ...
        }
    }

    if(NumberOfRows != dataGridView1.Rows.Count)
    {
        NumberOfRows = dataGridView1.Rows.Count;
        this.Height = BaseFormHeight + (ROW_SIZE * NumberOfRows);
    }
}

在Load事件处理程序中，您应该记录表单的初始高度和初始行数。

private void Form1_Load(object sender, EventArgs e)
{
    NumberOfRows = dataGridView1.Rows.Count;
    BaseFormHeight = this.Height - (NumberOfRows * ROW_SIZE);

    PopulateApplications();
}

Answer 2

这是我的工作代码：

首先在form1的顶部：

int firsttime;
private const int ROW_SIZE = 22;
private int NumberOfRows;
Image ima;
private System.Timers.Timer _refreshTimer;
private int _thisProcess;

然后在构造函数中：

firsttime = 0;
dataGridView1.BackgroundColor = System.Drawing.Color.White;
dataGridView1.Columns["Column2"].DefaultCellStyle.BackColor = System.Drawing.Color.LightGoldenrodYellow;
dataGridView1.Columns["Column3"].DefaultCellStyle.BackColor = System.Drawing.Color.LightGoldenrodYellow;
dataGridView1.AllowUserToAddRows = false;
In the form1 load event:

private void Form1_Load(object sender, EventArgs e)
        {
            _thisProcess = Process.GetCurrentProcess().Id;
            InitializeRefreshTimer();
            PopulateApplications();
        }

然后定时器init方法我使用定时器来更新进程列表和dataGridView1。

void InitializeRefreshTimer()
        {
            _refreshTimer = new System.Timers.Timer(5000);
            _refreshTimer.SynchronizingObject = this;
            _refreshTimer.Elapsed += new System.Timers.ElapsedEventHandler(TimerToUpdate_Elapsed);
            _refreshTimer.Start();
        }

计时器已用完事件：

void TimerToUpdate_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            PopulateApplications();
        }

PopulateApplications方法：

void PopulateApplications()
        {
            dataGridView1.Rows.Clear();            
            foreach (Process p in Process.GetProcesses())
            {
                if (p.MainWindowTitle.Length > 1)
                {
                    var icon = Icon.ExtractAssociatedIcon(p.MainModule.FileName);
                    ima = icon.ToBitmap();
                    ima = resizeImage(ima, new Size(25, 25));
                    ima.Save(@"c:\temp\ima.jpg");
                    String status = p.Responding ? "Running" : "Not Responding";
                    dataGridView1.Rows.Add(ima,p.ProcessName, status);
                }
            }
            firsttime += 1;
            if (firsttime == 1)
            {
                NumberOfRows = dataGridView1.Rows.Count;
            }
            if (NumberOfRows != dataGridView1.Rows.Count)
            {
                int diff = dataGridView1.Rows.Count - NumberOfRows;
                this.Height = this.Height + (ROW_SIZE * diff);
                NumberOfRows = dataGridView1.Rows.Count;
            }

        }

调整大小图像方法：

public static Image resizeImage(Image imgToResize, Size size)
        {
            return (Image)(new Bitmap(imgToResize, size));
        }

在form1设计器中，我添加了带有9列的dataGridView1，仅用于测试。在设计器中，form1大小为：652,358 dataGridView1大小为：624,479

现在每次添加一个新行时，form1 Height会自动调整大小+ = 22.如果删除一行意味着如果我关闭任何应用程序/进程它将自动更新dataGridView1并删除一行同时form1将调整大小自动的。

使用程序Paint检查它。打开它关闭了几次，它工作。

如何保留int变量的旧值数，并根据行数更改表单大小？

2 个答案: