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我找到了一篇完全符合我需要的文章。它在文本框的同一行上绘制多种颜色。但问题是它是用 VB.NET 编写的,而我正在用 C# 编写程序。如果可能的话,任何优秀的灵魂都可以将其转换为 C#,如果不是,你能给我其他选择吗?谢谢。

这是文章:http ://www.vbrad.com/article.aspx?id=34 。

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3 回答 3

2

这是您发布的内容的转换 Nicolas

如果您需要更改/让其他任何工作正常工作,您将需要最终对其进行测试..

快乐编码

private void  MeasureItemHandler(object sender, MeasureItemEventArgs e)
{
    Graphics g = Graphics.FromHwnd(lstColor.Handle);
    StringFormat sf = new StringFormat(StringFormat.GenericTypographic);
    SizeF size = default(SizeF);
    float height = 0;
    Font oFont = new Font("Arial", 10);

    //measure the height of what you are about to draw
    //and let the listbox know this
    size = g.MeasureString(data(e.Index), oFont, 500, sf);
    height = size.Height + 5;
    e.ItemHeight = height;
}

private void  DrawItemHandler(object sender, DrawItemEventArgs e)
{

    Graphics g = Graphics.FromHwnd(lstColor.Handle);
    StringFormat sf = new StringFormat(StringFormat.GenericTypographic);
    SizeF size = default(SizeF);
    float width = 0;
    Font oFont = new Font("Arial", 10);


    //get the width of the string you are about to write
    //this info is needed so that we can offset the next 
    //string that will be drawn in a different color.
    size = g.MeasureString(data(e.Index), oFont, 500, sf);
    width = size.Width + 16;

    //prepare the list for drawing
    e.DrawBackground();
    e.DrawFocusRectangle();

    //draw the first string in a certain color
    e.Graphics.DrawString(data(e.Index), oFont, new SolidBrush(color(e.Index)), e.Bounds.X, e.Bounds.Y);

    //draw the second string in a different color
    e.Graphics.DrawString(data(data.Length - 1 - e.Index), oFont, new SolidBrush(color(color.Length - 1 - e.Index)), width, e.Bounds.Y);
}
于 2012-08-06T15:48:02.780 回答
1

首先,他们在本文中没有使用文本框,他们使用的是列表框,但接下来是您所问的从 VB.Net 到 C# 的代码转换。它需要整理一下,但它可以完成工作。

只需创建一个新的 Windows 窗体,在此窗体上放置一个名为 lstColor 的列表框,在属性窗口中将属性更改DrawModeOwnerDrawFixed,然后为DrawItemMeasureItem添加事件处理程序(您可以通过单击属性窗口中的闪电来添加事件处理程序,然后双击列表中这两个单词旁边的空格)。

DrawItem事件处理程序中,添加以下内容:

private void lstColor_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e)
{
    var size = g.MeasureString(data[e.Index], oFont, 500, sf);
    var width = size.Width + 16;

    e.DrawBackground();
    e.DrawFocusRectangle();
    e.Graphics.DrawString(data[e.Index], oFont, new SolidBrush(color[e.Index]), e.Bounds.X, e.Bounds.Y);
    e.Graphics.DrawString(data[data.Length - 1 - e.Index], oFont, new SolidBrush(color[color.Length - 1 - e.Index]), width, e.Bounds.Y);
}

MeasureItem事件处理程序中,添加以下内容:

private void lstColor_MeasureItem(object sender, MeasureItemEventArgs e)
{
    var size = g.MeasureString(data[e.Index], oFont, 500, sf);
    var height = size.Height;

    e.ItemHeight = Convert.ToInt32(height);
}

在任何方法的范围之外添加五个私有字段,但在您的Form1(或您称之为表单的任何内容)类中,如下所示:

private string[] data;
private Color[] color;
private Font oFont;
private Graphics g;
private StringFormat sf;

将以下三行放入Form1_Load事件中:

private void Form1_Load(object sender, EventArgs e)
{
    oFont = new Font("Arial", 10);

    data = new string[] { "This is Red", "This is Blue", "This is Green", "This is Yellow", "This is Black", "This is Aqua", "This is Brown", "This is Cyan", "This is Gray", "This is Pink" };
    color = new Color[] {Color.Red, Color.Blue, Color.Green, Color.Yellow, Color.Black, Color.Aqua, Color.Brown, Color.Cyan, Color.Gray,Color.Pink};
    lstColor.DataSource = data;
    g = Graphics.FromHwnd(lstColor.Handle);
    sf = new StringFormat(StringFormat.GenericTypographic);
}

你都准备好了。

希望这可以帮助

于 2012-08-06T16:21:30.410 回答
0

查看http://converter.telerik.com/ 它将代码从 VB.NET 转换为 C#,将 C# 转换为 VB.NET。它不适用于复杂的代码,但可能对您有用。

于 2012-08-06T18:21:13.370 回答