让ListView显示图形代码,CSharp代码库,德仔网

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【CSharp】让ListView显示图形
作者:Dezai.CN / 发布于2011/9/21/ 605
<div>using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
namespace 库存显示控件
{
class mylistview : ListView
{
public struct ItemIndex
{
private int rowIndex;
private int columnIndex;
public ItemIndex(int rowIndex, int columnIndex)
{
this.rowIndex = rowIndex;
this.columnIndex = columnIndex;
}
public int RowIndex
{ 
get
{
return rowIndex;
}
set
{
rowIndex = value;
}
}
public int ColumnIndex
{
get
{
return columnIndex;
}
set
{
columnIndex = value;
}
}
}
private string subItemText = string.Empty;
private ItemIndex itemindex;
public mylistview()
{
this.GridLines = true;
this.OwnerDraw = true;
this.View = System.Windows.Forms.View.Details;
this.MouseMove += new MouseEventHandler(mylistview_MouseMove);
}
void mylistview_MouseMove(object sender, MouseEventArgs e)
{
int columncount = this.Columns.Count;
int rowcount = this.Items.Count;
int[] clm = new int[columncount];
for (int i = 0; i < columncount; i++)
{
clm[i] = this.Items[0].SubItems[i].Bounds.X;
}
int colmn = 0;
int x = e.X;
for (int i = 0; i < columncount; i++)
if (x < clm[i])
{
colmn = i - 1;
break;
}
if (clm[columncount - 1] < x)
colmn = columncount - 1;
try
{
int row = this.HitTest(e.X, e.Y).Item.Index;
subItemText = this.Items[row].SubItems[colmn].Text;
int pane = GetPaneLocation(this.Items[row].SubItems[colmn].Bounds, subItemText, e.X);
itemindex = new ItemIndex(row, colmn);
NewMouseMove(itemindex,pane);

}
catch
{

}
}
private int GetPaneLocation(Rectangle Rr,string part,int mouseX)
{
int pane = -1;
if (part.Equals("0"))
{
return 1;
}
else
{ 
int width = Rr.Width / part.Length;
while ((part.Length + 1 + width * part.Length) > Rr.Width)
{
width--;
}
int x = Rr.X + width + 2;

for (int i = 0; i < part.Length; i++)
{
if (mouseX < x)
{
pane = i + 1;
break;
}
x = x + width + 1;

}
return pane;
}


}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
}
protected override void OnDrawColumnHeader(DrawListViewColumnHeaderEventArgs e)
{
using (StringFormat sf = new StringFormat())
{
switch (e.Header.TextAlign)
{
case HorizontalAlignment.Center:
sf.Alignment = StringAlignment.Center;
break;
case HorizontalAlignment.Right:
sf.Alignment = StringAlignment.Far;
break;
}
e.DrawBackground();
using (Font headerFont =
new Font("Helvetica", 10, FontStyle.Bold))
{
e.Graphics.DrawString(e.Header.Text, headerFont,
Brushes.Black, e.Bounds, sf);
}
}
return;
}
protected override void OnDrawSubItem(DrawListViewSubItemEventArgs e)
{
if (e.ColumnIndex > 0)
{
Graphics g = e.Graphics;
Rectangle Rr = e.Bounds;
SolidBrush brush1 = new SolidBrush(Color.Black);
Rectangle Rr5 = new Rectangle();
Rr5.X = Rr.X + 1;
Rr5.Y = Rr.Y + 1;
Rr5.Width = Rr.Width - 2;
Rr5.Height = Rr.Height - 3;
g.FillRectangle(brush1, Rr5);
string part = e.Item.SubItems[e.ColumnIndex].Text;
if (part.Equals("0"))
{
Rectangle Rr3 = new Rectangle();
SolidBrush brush = new SolidBrush(Color.Gray);
Rr3.X = Rr5.X + 1;
Rr3.Y = Rr5.Y + 1;
Rr3.Height = Rr5.Height - 2;
Rr3.Width = Rr5.Width - 2;
g.FillRectangle(brush, Rr3);
}
else
{
int x = Rr5.X + 1;
int y = Rr5.Y + 1;
int width = Rr5.Width / part.Length;
while ((part.Length + 1 + width * part.Length) > Rr5.Width)
{
width--;
}
int height = Rr5.Height - 2;
for (int i = 0; i < part.Length; i++)
{
if (part[i] == '0')
{
Rectangle Rr3 = new Rectangle();
SolidBrush brush = new SolidBrush(Color.DarkKhaki);
Rr3.Height = height;
Rr3.Width = width;
Rr3.X = x;
Rr3.Y = y;
g.FillRectangle(brush, Rr3);
}
//else if (part[i] == '1') //作为第三状态不是全满
//{
// Rectangle Rr3 = new Rectangle();
// SolidBrush brush = new SolidBrush(Color.Brown);
// Rr3.Height = height;
// Rr3.Width = width;
// Rr3.X = x;
// Rr3.Y = y;
// g.FillRectangle(brush, Rr3);
//}
else
{
Rectangle Rr3 = new Rectangle();
SolidBrush brush = new SolidBrush(Color.Brown);
Rr3.Height = height;
Rr3.Width = width;
Rr3.X = x;
Rr3.Y = y;
g.FillRectangle(brush, Rr3);
}
x = x + width + 1;
if (i == part.Length - 2)
{
width = Rr5.Width - (width + 1) * (part.Length - 1) - 2;
}

}
}
g.Dispose();
}
else
{
using (StringFormat sf = new StringFormat())
{
switch (e.Header.TextAlign)
{
case HorizontalAlignment.Center:
sf.Alignment = StringAlignment.Center;
break;
case HorizontalAlignment.Right:
sf.Alignment = StringAlignment.Far;
break;
}
e.Graphics.DrawString(e.SubItem.Text,
this.Font, Brushes.Black, e.Bounds, sf);
}
}
}
public delegate void MouseMoveHendle(ItemIndex ItemBothIndex,int pane);
public event MouseMoveHendle NewMouseMove;

}
}
<img style="position: relative; display: none" id="paperPicArea1" title="C#让ListView显示图形" name="paperPicArea1" alt="C#让ListView显示图形" src="http://cnc.imgcache.qq.com/ac/b.gif" /></div>
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