listbox显示字体的颜色
我想要显示这样的效果：
listbox1.Items.Add("成功"); 要求成功字体的颜色为蓝色
listbox1.Items.Add("失败"); 要求失败字体的颜色为红色
能否作到？
[解决办法]
public partial class Form2 : Form { public Form2() { InitializeComponent(); listBox1.DrawMode = DrawMode.OwnerDrawFixed;//设置ListBox中每一项都手动绘制 listBox1.Items.Add("成功"); listBox1.Items.Add("失败"); listBox1.Items.Add("事业"); listBox1.Items.Add("成仁"); } //绘制ListBox项的方法 private void listBox1_DrawItem(object sender, DrawItemEventArgs e) { listBox1.DrawMode = DrawMode.OwnerDrawFixed; e.DrawBackground(); Brush myBrush = Brushes.Black; switch (listBox1.Items[e.Index].ToString()) { case "成功": myBrush = Brushes.Blue; Console.WriteLine(listBox1.Items[e.Index].ToString()); break; case "失败": myBrush = Brushes.Red; Console.WriteLine(listBox1.Items[e.Index].ToString()); break; default: myBrush = Brushes.Purple; Console.WriteLine(listBox1.Items[e.Index].ToString()); break; } e.Graphics.DrawString(listBox1.Items[e.Index].ToString(), e.Font, myBrush, e.Bounds, StringFormat.GenericDefault); e.DrawFocusRectangle(); } }
[解决办法]
设置listbox.DrawMode属性为OwnerDrawFixed
然后添加listbox到drawitem事件
在里面选择哪个item颜色自己设置
private void listBox1_DrawItem(object sender, DrawItemEventArgs e)
{
listBox1.DrawMode = DrawMode.OwnerDrawFixed;
// Draw the background of the ListBox control for each item.
e.DrawBackground();
// Define the default color of the brush as black.
Brush myBrush = Brushes.Black;
// Determine the color of the brush to draw each item based on the index of the item to draw.
switch (e.Index)
{
case 0:
myBrush = Brushes.Red;
break;
case 1:
myBrush = Brushes.Orange;
break;
case 2:
myBrush = Brushes.Purple;
break;
}
// Draw the current item text based on the current Font and the custom brush settings.
e.Graphics.DrawString(listBox1.Items[e.Index].ToString(), e.Font, myBrush, e.Bounds, StringFormat.GenericDefault);
// If the ListBox has focus, draw a focus rectangle around the selected item.
e.DrawFocusRectangle();
}
[解决办法]
private void Form1_Load(object sender, EventArgs e){ listBox1.Items.Add("第一次成功、第二次失败"); listBox1.Items.Add("第三次失败。"); listBox1.Items.Add("第四次未知");}private KeyColor[] keyColors = new KeyColor[] { new KeyColor("成功", Color.Blue), new KeyColor("失败", Color.Red), new KeyColor("未知", Color.Green) };private void listBox1_DrawItem(object sender, DrawItemEventArgs e){ e.DrawBackground(); Brush brush = new SolidBrush(e.ForeColor); string itemText = listBox1.Items[e.Index].ToString(); string backText = itemText; foreach (KeyColor keyColor in keyColors) backText = backText.Replace(keyColor.key, new string(' ', keyColor.key.Length)); if (string.Compare(itemText, backText) == 0) e.Graphics.DrawString(itemText, e.Font, brush, e.Bounds, StringFormat.GenericDefault); else { foreach (KeyColor keyColor in keyColors) { string markText = itemText.Replace(keyColor.key, new string(' ', keyColor.key.Length)); string foreText = string.Empty; for (int i = 0; i < itemText.Length; i++) foreText += markText[i] == ' ' ? itemText[i] : ' '; e.Graphics.DrawString(foreText, e.Font, new SolidBrush(keyColor.color), e.Bounds, StringFormat.GenericDefault); } e.Graphics.DrawString(backText, e.Font, brush, e.Bounds, StringFormat.GenericDefault); } e.DrawFocusRectangle();}
[解决办法]
public struct KeyColor{ public string key; public Color color; public KeyColor(string key, Color color) { this.key = key; this.color = color; }}
[解决办法]
private void listBox1_DrawItem(object sender, DrawItemEventArgs e) { e.DrawBackground(); string StarText=listBox1.Items[e.Index].ToString(); string EndText = StarText.Remove(0, 3); e.Graphics.DrawString(StarText.Substring(0, 3), e.Font, Brushes.Black, e.Bounds); switch (EndText) { case "成功": e.Graphics.DrawString(" " + StarText.Remove(0, 3), e.Font, Brushes.Red, e.Bounds); break; case "失败": e.Graphics.DrawString(" " + StarText.Remove(0, 3), e.Font, Brushes.Blue, e.Bounds); break; default: e.Graphics.DrawString(" " + StarText.Remove(0, 3), e.Font, Brushes.Black, e.Bounds); break; } e.DrawFocusRectangle(); }