如何将标签放在另一个标签上，并且它们的文本同时显示？当我做这项工作时，一个标签会出现在另一个标签的顶部，并且上面标签的文本会显示出来。即使我选择 BackColor = Transparent 但它不起作用。见下图。这是两个标签，标签 1 位于标签 2 下，标签 1 的文本丢失。
我想得到这个结果：
想象一下我有两个标签。一个是 24pt 字体大小，另一个是 8pt。当我使用较大的字体时，标签的框架比其他标签大。我不能让它们更近。
问问题
3472 次
4 回答
3
你可以这样试试：
label.Parent = parent with background
label.BackColor = Color.Transparent
label.Location = location you want offset with parent
以下是 C# 中转换后的代码：
using System.Windows.Forms;
using System.Drawing;
using System.ComponentModel;
public class TransparentLabel {
public TransparentLabel() {
// This call is required by the designer.
InitializeComponent();
// Add any initialization after the InitializeComponent() call.
// Add any initialization after the InitializeComponent() call.
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
this.SetStyle(ControlStyles.Opaque, true);
this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
this.components = new System.ComponentModel.Container();
RF = new RectangleF(0, 0, base.Width, base.Height);
LabelForeColorBrush = new SolidBrush(base.ForeColor);
}
private StringFormat sFormat;
private RectangleF RF;
private SolidBrush LabelForeColorBrush = null;
private void UpdateText() {
try {
sFormat = new StringFormat();
int x = 0;
int y = 0;
// With...
switch (TextAlignment) {
case ContentAlignment.BottomCenter:
sFormat.Alignment = StringAlignment.Center;
sFormat.LineAlignment = StringAlignment.Far;
break;
case ContentAlignment.BottomLeft:
sFormat.Alignment = StringAlignment.Near;
sFormat.LineAlignment = StringAlignment.Far;
break;
case ContentAlignment.BottomRight:
sFormat.Alignment = StringAlignment.Far;
sFormat.LineAlignment = StringAlignment.Far;
break;
case ContentAlignment.MiddleLeft:
sFormat.Alignment = StringAlignment.Near;
sFormat.LineAlignment = StringAlignment.Center;
break;
case ContentAlignment.MiddleCenter:
sFormat.Alignment = StringAlignment.Center;
sFormat.LineAlignment = StringAlignment.Center;
break;
case ContentAlignment.MiddleRight:
sFormat.Alignment = StringAlignment.Far;
sFormat.LineAlignment = StringAlignment.Center;
break;
case ContentAlignment.TopCenter:
sFormat.Alignment = StringAlignment.Center;
sFormat.LineAlignment = StringAlignment.Near;
break;
case ContentAlignment.TopLeft:
sFormat.Alignment = StringAlignment.Near;
sFormat.LineAlignment = StringAlignment.Near;
break;
case ContentAlignment.TopRight:
sFormat.Alignment = StringAlignment.Far;
sFormat.LineAlignment = StringAlignment.Near;
break;
}
sFormat.FormatFlags = StringDirection;
ResizeControl();
}
catch (Exception ex) {
}
}
private void ResizeControl() {
RF.Size = new Size(base.Size);
Invalidate();
}
private StringFormatFlags _StringDirection = (StringFormatFlags.NoClip < Description("The Direction of the Text."));
public StringFormatFlags StringDirection {
get {
return _StringDirection;
}
set {
_StringDirection = value;
UpdateText;
}
}
private System.Drawing.ContentAlignment _TextAlignment = (ContentAlignment.MiddleCenter < Description("The Text Alignment that will appear on this control."));
public System.Drawing.ContentAlignment TextAlignment {
get {
return _TextAlignment;
}
set {
_TextAlignment = value;
UpdateText();
}
}
public override System.Drawing.Color ForeColor {
get {
return base.ForeColor;
}
set {
base.ForeColor = value;
LabelForeColorBrush = new SolidBrush(value);
}
}
private string _Labeltext = ("TransparentLabel" < Description("The text to be displayed in supports with real transparency."));
public string LabelText {
get {
return _Labeltext;
}
set {
_Labeltext = value;
Invalidate();
}
}
[Browsable(false)]
[EditorBrowsable(false)]
public override System.Drawing.Color BackColor {
get {
return base.BackColor;
}
set {
base.BackColor = value;
}
}
protected override System.Windows.Forms.CreateParams CreateParams {
get {
CreateParams cp = base.CreateParams;
cp.ExStyle = (cp.ExStyle | 32);
return cp;
}
}
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e) {
try {
base.OnPaint(e);
// draw the text on the control
e.Graphics.DrawString(LabelText, base.Font, LabelForeColorBrush, RF, sFormat);
// MyBase.OnPaint(e)
}
catch (Exception ex) {
}
}
private void TransparentLabel_Resize(object sender, System.EventArgs e) {
ResizeControl();
}
}
于 2013-02-17T17:41:22.600 回答
0
这不是标签，但它应该让你得到你想要达到的目标：
public void Form1()
{
Paint += Form1_Paint;
}
public void Form1_Paint(object sender, PaintEventArgs e)
{
e.Graphics.Clear(SystemColors.Control);
DrawOverlappingLabels(e, *new point for label 1*, *new point for label 2*);
}
private void DrawOverlappingLabels(PaintEventArgs e, _
Point positionLabel1, Point positionLabel2)
{
var graphics = e.Graphics();
var rectLabel1 = new Rectangle(new positionLabel1, new Size(150, 30));
var rectLabel2 = new Rectangle(new positionLabel2, new Size(150, 30));
graphics.DrawString("Label1", new Font(Font.FontFamily, 24f), _
new SolidBrush(Color.Black), rectLabel1);
graphics.DrawString("Label2", new Font(Font.FontFamily, 8f), _
new SolidBrush(Color.Black), rectLabel2);
}
定义第二个Rectangle来调整第二个“标签”的位置。
于 2013-02-17T18:02:51.893 回答
0
Winforms 标签不支持透明度。如果你想做到这一点，你需要创建自己的标签。
于 2013-02-17T17:36:20.473 回答
0
我不知道我的问题是否正确。但是标签阴影不是你想要的吗？
如果是这种情况，那么您应该查看此站点：Label drop shadow
使用小样本：
using System;
using System.Drawing;
using System.Windows.Forms;
class WinFormsDropShadow: Form
{
public static void Main()
{
Application.Run(new WinFormsDropShadow());
}
public WinFormsDropShadow()
{
Text = "Windows Forms Drop Shadow";
BackColor = Color.White;
Size = new Size(640, 480);
}
protected override void OnPaint(PaintEventArgs args)
{
Graphics grfx = args.Graphics;
Font fnt = new Font("Arial Black", 96);
string str = "Shadow";
grfx.DrawString(str, fnt, Brushes.Gray, grfx.DpiX / 12, grfx.DpiY / 12);
grfx.DrawString(str, fnt, Brushes.Black, 0, 0);
}
}
于 2013-02-17T18:14:17.627 回答