C# 如何保留int变量的旧值编号，并根据行数更改form1大小？_C#_Winforms

C# 如何保留int变量的旧值编号，并根据行数更改form1大小？

c# winforms

C# 如何保留int变量的旧值编号，并根据行数更改form1大小？,c#,winforms,C#,Winforms,这是我的工作代码：表格1顶部的第一个： int firsttime; private const int ROW_SIZE = 22; private int NumberOfRows; Image ima; private System.Timers.Timer _refreshTimer; private int _thisProcess; int firsttime; private const int ROW_SIZE = 22; private int NumberOfRows;

这是我的工作代码：

表格1顶部的第一个：

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

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;

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();
        }

在form1加载事件中：

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

然后，我使用timer init方法更新进程列表和dataGridView1

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

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

计时器已过事件：

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

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

PopulateApplication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;
            }

        }

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;
            }

        }

调整图像大小的方法：

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

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

在form1设计器中，我添加了dataGridView1，其中包含9列，仅用于测试。在designer中，form1的大小是：652358 dataGridView1的大小是：624479

现在，每次添加新行时，form1高度自动调整大小为+=22。如果删除一行，这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，form1也将自动调整大小

用程序油漆检查过了。打开它几次，关闭几次，它就工作了。

编辑：

我用下面的代码替换了我原来的答案，因为它更好。您不需要同时使用

lastValue

和

currentValue

变量。相反，我使用了一个名为

NumberOfRows

的变量。我还添加了两个常量

ROW\u SIZE

（添加到每行表单高度的量）和

BaseFormHeight

（没有行时表单的高度）

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();
}