列表框项目的颜色 [英] Color Of Listbox Items

问题描述

Hey Guys，tnx for Help me。

我有一个列表框，它显示我的应用程序的日志，但其中一些日志

是错误所以我想当在我的列表框中添加一个错误，该项目的颜色（只有该项目）更改为另一种颜色，如红色.....



我使用Forecolor属性，但是它改变所有项目的颜色..

Hey Guys , tnx for Helping me.
I have a listbox , that shows me logs of my application but some of these logs
are Errors So I Wanna when add an Error to my Listbox , Color of that Item (only that Item) changed to another color like Red.....

I use Forecolor Property befor that but its change colors of all items ..

推荐答案

假设这是 Windows窗体 ListBox 控件 [ ^ ]，您需要设置 DrawMode [ ^ ]到 OwnerDrawFixed 一个d处理 DrawItem 事件 [ ^ ]。 MSDN有一个例子：

Assuming this is the Windows Forms ListBox control[^], you need to set the DrawMode[^] to OwnerDrawFixed and handle the DrawItem event[^]. MSDN has an example:

private ListBox ListBox1 = new ListBox();

private void InitializeListBox()
{
    ListBox1.Items.AddRange(new Object[] 
        { "Red Item", "Orange Item", "Purple Item" });
    ListBox1.Location = new System.Drawing.Point(81, 69);
    ListBox1.Size = new System.Drawing.Size(120, 95);
    ListBox1.DrawMode = DrawMode.OwnerDrawFixed;
    ListBox1.DrawItem += new DrawItemEventHandler(ListBox1_DrawItem);
    Controls.Add(ListBox1);
}

private void ListBox1_DrawItem(object sender, 
    System.Windows.Forms.DrawItemEventArgs e)
{
    // 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();
}

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