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分享C#自定义控件问题
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication3
{
public partial class UserControl1 : UserControl
{
private int count = 4;
public int Count
{
get { return count; }
set
{
count = value;
this.Invalidate();
}
}
public int index = 0;
public string name = "";
public Color color;
public UserControl1()
{
InitializeComponent();
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Graphics g = e.Graphics;
#region 定义颜色
if (index <= count)
{
if (index == 1)
{
color = Color.Red ;
}
if (index == 2)
{
color = Color.Black;
}
if (index == 3)
{
color = Color.Blue;
}
if (index == 4)
{
color = Color.SkyBlue;
}
}
else
{
count = index;
if (index == 5)
{
color = Color.Coral;
}
if (index == 6)
{
color = Color.CornflowerBlue;
}
}
#endregion
#region 分割图形
Pen pn1 = new Pen(Color.Black, 2);
for (int i = 0; i < count; i++)
{
if (i < count)
{
Point pot1 = new Point((this.Width * i) / count, 0);
Point pot2 = new Point((this.Width * i) / count, this.Height);
g.DrawLine(pn1, pot1, pot2);
}
}
#endregion
#region 写字填充
Font verdanaFont = new Font("Verdana", 10, FontStyle.Bold);
Rectangle rect = new Rectangle(this.Width * (index - 1) / count + 1, 0, this.Width / count - 1, this.Height);
StringFormat strFormat1 = new StringFormat();
strFormat1.Alignment = StringAlignment.Center;
strFormat1.LineAlignment = StringAlignment.Center;
strFormat1.Trimming = StringTrimming.EllipsisCharacter;
g.FillRectangle(new SolidBrush(color), rect);
g.DrawString(name, verdanaFont, new SolidBrush(Color.Black), rect, strFormat1);
#endregion
#region 边框绘制
Pen pn = new Pen(Color.Black);
g.DrawRectangle(pn, 0, 0, this.Width - 1, this.Height - 1);
#endregion
strFormat1.Dispose();
pn1.Dispose();
pn.Dispose();
verdanaFont.Dispose();
}
#region 公有方法
public void Init(int count)
{
this.count = count;
}
public void SetColor(int index, string name)
{
this.index = index;
this.name = name;
this.Invalidate();
}
//public void save()
//{
// Dictionary<int, string> dic = new Dictionary<int, string>();
// for (int i = 0; i < 6; i++)
// {
// if (i == index)
// {
// dic.Add(index, name);
// }
// }
//}
#endregion
}
}
举例说明我要的效果
当index为1时，name为test1，color为red
当我输入index为2时，name为test2，color为black
控件中同时显示index为1和2时的情况。
2楼放下楼主写的带自定义控件和测试button的csdn内的下载资源，希望有大牛帮我解决
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threenewbee 2014-08-22
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public int index = 0;
public string name = "";
->
public List<int> index = new List<int> { 0 };
public List<string> name = new List<string> { "" };
public void SetColor(int index, string name)
{
this.index = index;
this.name = name;
this.Invalidate();
}
->
public void SetColor(int index, string name)
{
this.index.Add(index);
this.name.Add(name);
this.Invalidate();
}
fudashouyao 2014-08-22
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单一对象和数组的问题，要么每次都NEW一个新的对象，对象名修改，要么就用数组来做
Peng_baoqing 2014-08-22
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public partial class UserControl1 : UserControl
{
private int count = 4;
public int Count
{
get { return count; }
set
{
count = value;
this.Invalidate();
}
}
private List<string> showText;
public List<string> ShowText
{
get { return showText; }
set { showText = value; }
}
private int index;
public int Index
{
get { return index; }
set { index = value; }
}
public UserControl1()
{
InitializeComponent();
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Graphics g = e.Graphics;
Color[] colors = { Color.Red, Color.Black, Color.Blue, Color.SkyBlue };
#region 分割图形
Pen pn1 = new Pen(Color.Black, 2);
for (int i = 0; i < count; i++)
{
if (i < count)
{
Point pot1 = new Point((this.Width * i) / count, 0);
Point pot2 = new Point((this.Width * i) / count, this.Height);
g.DrawLine(pn1, pot1, pot2);
}
}
#endregion
#region 背景颜色和写字填充
for (int i = 0; i < Index; i++)
{
Font verdanaFont = new Font("Verdana", 10, FontStyle.Bold);
Rectangle rect = new Rectangle(this.Width * i / count + 1, 0, this.Width / count - 1, this.Height);
StringFormat strFormat1 = new StringFormat();
strFormat1.Alignment = StringAlignment.Center;
strFormat1.LineAlignment = StringAlignment.Center;
strFormat1.Trimming = StringTrimming.EllipsisCharacter;
g.FillRectangle(new SolidBrush(colors[i]), rect);
g.DrawString(ShowText[i], verdanaFont, new SolidBrush(Color.Black), rect, strFormat1);
}
#endregion
#region 边框绘制
Pen pn = new Pen(Color.Black);
g.DrawRectangle(pn, 0, 0, this.Width - 1, this.Height - 1);
#endregion
pn1.Dispose();
pn.Dispose();
}
#region 公有方法
public void Init(int count)
{
this.count = count;
}
public void SetColor(int index, List<string> name)
{
this.Index = index;
this.ShowText = name;
this.Invalidate();
}
#endregion
} 使用 List<string> names = new List<string>();
private void button1_Click(object sender, EventArgs e)
{
int number = Convert.ToInt32(textBox3.Text);
names.Add(textBox1.Text);
userControl11.SetColor(number, names);
}
於黾 2014-08-22
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if (index == 1) { color = Color.Red ; } if (index == 2) { color = Color.Black; } if (index == 3) { color = Color.Blue; } if (index == 4) { color = Color.SkyBlue; }
你真是不怕累,不会用switch{case}么
改成数组之后,画图的时候也是用数组的元素作为变量来画啊
既然做成数组,当然是循环数组画了
Peng_baoqing 2014-08-22
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protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Graphics g = e.Graphics;
Color[] colors = { Color.Red, Color.Black, Color.Blue, Color.SkyBlue };
#region 分割图形
Pen pn1 = new Pen(Color.Black, 2);
for (int i = 0; i < count; i++)
{
if (i < count)
{
Point pot1 = new Point((this.Width * i) / count, 0);
Point pot2 = new Point((this.Width * i) / count, this.Height);
g.DrawLine(pn1, pot1, pot2);
}
}
#endregion
#region 背景颜色和写字填充
for (int i = 0; i < index && index <= colors.Length; i++)
{
Font verdanaFont = new Font("Verdana", 10, FontStyle.Bold);
Rectangle rect = new Rectangle(this.Width * i / count + 1, 0, this.Width / count - 1, this.Height);
StringFormat strFormat1 = new StringFormat();
strFormat1.Alignment = StringAlignment.Center;
strFormat1.LineAlignment = StringAlignment.Center;
strFormat1.Trimming = StringTrimming.EllipsisCharacter;
g.FillRectangle(new SolidBrush(colors[i]), rect);
g.DrawString(name, verdanaFont, new SolidBrush(Color.Black), rect, strFormat1);
}
#endregion
#region 边框绘制
Pen pn = new Pen(Color.Black);
g.DrawRectangle(pn, 0, 0, this.Width - 1, this.Height - 1);
#endregion
pn1.Dispose();
pn.Dispose();
}uppaway 2014-08-22
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我写成数列或者数组以后，下面的画图就会出现问题。我是要重新定义两个数组去保存吗？
於黾 2014-08-22
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实在玩不明白,定义成int[ ]和string[ ],给个足够大的长度,再用个int变量标识里面到底有几个有效数据
於黾 2014-08-22
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int[ ]和string[ ]会用不?
List<int>和List<string>使用起来没什么区别
就是可以动态往里添加数据而已,而不像数组必须初始化时给定长度
uppaway 2014-08-22
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换成这样的，我绘图中就出现错误了，index和name在绘图中是int和string，但换成数列的话，就会出现错误吧。
uppaway 2014-08-22
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恩，我想用dictionary<>的，但是写出来错误。所以来问的。
於黾 2014-08-22
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参考7楼
你想记住每一次输入,最起码得有个数组来存放每一次输入吧
只定义一个int来存放,一更新当然上一次的就没了
uppaway 2014-08-22
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感谢各位，现在还差一个文字不能更新的问题，再去研究研究。
uppaway 2014-08-21
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没有人吗uppaway 2014-08-21
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就是，先输入index=1，然后index=2输入以后，还是可以保留index=1时的情况。我现在做成的那个，只能显示单一的情况，当输入index=2时，index=1的格子就变回背景色了。
uppaway 2014-08-21
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就是想index=2时还能保留前面index=1时的情况。
ZhongGuanYao 2014-08-21
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LZ的需求是什么
bdmh 2014-08-21
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你现在是什么问题，你那不是已经根据indwx判断了吗，改变属性后调用invalidate重绘
uppaway 2014-08-21
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带了index和name的txtbox，以及button的测试代码，csdn内资源。
http://download.csdn.net/detail/uppaway/7795381
