本文整理汇总了C#中System.Windows.Forms.ScrollBar.Scroll事件的典型用法代码示例。如果您正苦于以下问题：C# ScrollBar.Scroll事件的具体用法？C# ScrollBar.Scroll怎么用？C# ScrollBar.Scroll使用的例子？那么, 这里精选的事件代码示例或许可以为您提供帮助。您也可以进一步了解该事件所在类System.Windows.Forms.ScrollBar的用法示例。
在下文中一共展示了ScrollBar.Scroll事件的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: HandleScroll
private void HandleScroll(Object sender, ScrollEventArgs e)
{
//Create a graphics object and draw a portion of the image in the PictureBox.
Graphics g = pictureBox1.CreateGraphics();
int xWidth = pictureBox1.Width;
int yHeight = pictureBox1.Height;
int x;
int y;
if (e.ScrollOrientation == ScrollOrientation.HorizontalScroll)
{
x = e.NewValue;
y = vScrollBar1.Value;
}
else //e.ScrollOrientation == ScrollOrientation.VerticalScroll
{
y = e.NewValue;
x = hScrollBar1.Value;
}
g.DrawImage(pictureBox1.Image,
new Rectangle(0, 0, xWidth, yHeight), //where to draw the image
new Rectangle(x, y, xWidth, yHeight), //the portion of the image to draw
GraphicsUnit.Pixel);
pictureBox1.Update();
}示例2: AddMyScrollEventHandlers
private void AddMyScrollEventHandlers()
{
// Create and initialize a VScrollBar.
VScrollBar vScrollBar1 = new VScrollBar();
// Add event handlers for the OnScroll and OnValueChanged events.
vScrollBar1.Scroll += new ScrollEventHandler(
this.vScrollBar1_Scroll);
vScrollBar1.ValueChanged += new EventHandler(
this.vScrollBar1_ValueChanged);
}
// Create the ValueChanged event handler.
private void vScrollBar1_ValueChanged(Object sender,
EventArgs e)
{
// Display the new value in the label.
label1.Text = "vScrollBar Value:(OnValueChanged Event) " + vScrollBar1.Value.ToString();
}
// Create the Scroll event handler.
private void vScrollBar1_Scroll(Object sender,
ScrollEventArgs e)
{
// Display the new value in the label.
label1.Text = "VScrollBar Value:(OnScroll Event) " + e.NewValue.ToString();
}
private void button1_Click(Object sender,
EventArgs e)
{
// Add 40 to the Value property if it will not exceed the Maximum value.
if (vScrollBar1.Value + 40 < vScrollBar1.Maximum)
{
vScrollBar1.Value = vScrollBar1.Value + 40;
}
}