C# mousedown無法呼叫

Question

int i, j;

public Form1()

{

InitializeComponent();

pictureBox2.SizeMode = PictureBoxSizeMode.StretchImage;

pictureBox1.SizeMode = PictureBoxSizeMode.Zoom;

pictureBox1.Image = Image.FromFile("C:\\Documents and Settings\\adam\\桌面\\C#\\end.jpg");

pictureBox1.Location = new Point(500, 12);

pictureBox1.BringToFront(); //移到最上面

pictureBox2.Image = Image.FromFile("C:\\Documents and Settings\\adam\\桌面\\C#\\one.jpg");

pictureBox2.Location = new Point(x, y);

}

private void timer1_Tick(object sender, EventArgs e)

{ }

private void pictureBox2_Click(object sender, EventArgs e)

{

v = numericUpDown1.Value;

timer1.Start();

}

private void numericUpDown1_ValueChanged(object sender, EventArgs e)

{ }

private void label1_Click(object sender, EventArgs e)

{ }

private void pictureBox1_MouseDown(object sender, MouseEventArgs e)

{

this.Cursor = Cursors.Hand;

i = e.X;

j = e.Y;

}

private void pictureBox1_MouseMove(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

pictureBox1.Left = pictureBox1.Left + e.X-i;

pictureBox1.Top = pictureBox1.Top + e.Y-j;

}

}

private void pictureBox1_MouseUp(object sender, MouseEventArgs e)

{

pictureBox1.Left = pictureBox1.Left + e.X - i;

pictureBox1.Top = pictureBox1.Top + e.Y - j;

}

private void pictureBox1_Click(object sender, EventArgs e)

{ }

這是我部分程式碼 , 我有上網查有關mousemove等相關資料

但是當我執行 , 卻沒有辦法移動pictureBox1

即使我在pictureBox1_MouseDown 加入

if (e.Button == MouseButtons.Left)

{MessageBox.Show("表單上按下滑鼠的左鍵";)}

也沒有動作~~不知道是發生什麼問題~謝謝幫忙@@a

Answer 1

Favorite Answer

請先用debug模式，在MouseDown, mousemove的function裡加中斷點，然後執行、點按pictureBox後看有沒有進去

再來你的MouseDown, mousemove是怎麼加入的？

在點選物件時，右邊會有個「屬性」頁，裡面有個閃電圖案，在裡面找到你要的，然後點兩下加進去，這樣才是正確的做法。

如果只是照著把程式打進去的話，不會動是正常的。