C＃：更改列表框行的颜色？ [英] C# : changing listbox row color?

问题描述

我试图改变一些行的背景颜色在的ListBox 。我有一个人的名字，并显示在一个的ListBox 两个列表。第二个列表有一些类似的值作为第一个列表。当点击一个按钮，我想搜索的ListBox 第二列表，并更改<$的颜色C $ C>的ListBox 对于那些出现在列表值。我在 ListBox中搜索如下：

I am trying to change the background color of some rows in a ListBox. I have two lists that one has names and is displayed in a ListBox. The second list has some similar values as the first List. When clicking a button, I want to search the ListBox and the second List, and change the color of the ListBox for those values that appear in the List. My search in the ListBox is as follows:

for (int i = 0; i < listBox1.Items.Count; i++)
{
    for (int j = 0; j < students.Count; j++)
    {
        if (listBox1.Items[i].ToString().Contains(students[j].ToString()))
        {
        }
    }
}

但我不知道为了改变的ListBox 行的外观使用的方法。任何人可以帮助我吗？

But I don't know which method to use in order to change the appearance of a ListBox row. Can anybody help me?

**编辑：**

您好，我写我的code如下：

HI I wrote my code as follows:

private void ListBox1_DrawItem(object sender, DrawItemEventArgs e)
{
    e.DrawBackground();
    Graphics g = e.Graphics;
    Brush myBrush = Brushes.Black;
    Brush myBrush2 = Brushes.Red;
    g.FillRectangle(new SolidBrush(Color.Silver), e.Bounds);
    e.Graphics.DrawString(listBox1.Items[e.Index].ToString(), e.Font, myBrush, e.Bounds, StringFormat.GenericDefault);
    for (int i = 0; i < listBox1.Items.Count; i++)
    {
        for (int j = 0; j < existingStudents.Count; j++)
        {
            if (listBox1.Items[i].ToString().Contains(existingStudents[j]))
            {
                e.Graphics.DrawString(listBox1.Items[i].ToString(),
                e.Font, myBrush2, e.Bounds, StringFormat.GenericDefault);
            }
        }
    }
    e.DrawFocusRectangle();
}

现在它吸引我的列表在的ListBox ，但是当我第一次按一下按钮，它显示为红色只有那些在列表，当我点击的ListBox 它绘制所有元素的学生。我想，它会显示所有的元素，当我按一下按钮，它会显示所有元素，并在列表红色中发现的元素。哪里是我的错？

Now it draws my List in the ListBox, but when I click the button first, it shows in red only the students that are in the List and when I click on the ListBox it draws all the elements. I want that it will show all the elements , and when I click the button it will show all the elements and the element found in the List in red. Where is my mistake?

推荐答案

我找到解决方案，而不是使用的ListBox我用ListView.It允许改变列表项背景色。

I find solution that instead of using ListBox I used ListView.It allows to change list items BackColor.

private void listView1_Refresh()
{
    for (int i = 0; i < listView1.Items.Count; i++)
    {
        listView1.Items[i].BackColor = Color.Red;
        for (int j = 0; j < existingStudents.Count; j++)
        {
            if (listView1.Items[i].ToString().Contains(existingStudents[j]))
            {
                listView1.Items[i].BackColor = Color.Green;
            }
        }
    }
}

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