C# 用C语言将绘图从类发送到窗体#
我有一个名为C# 用C语言将绘图从类发送到窗体#,c#,winforms,gdi,C#,Winforms,Gdi,我有一个名为CircleSector的类,它绘制了一个PIChart 如果我从form1调用该类,则无法绘制PIChart 这是我的密码: 表格1: public void button1_Click(object sender, EventArgs e) { int textdata = Convert.ToInt32(textBox1.Text); CS = new CircleSector(textdata, this); // CS.GetGraphicSecto
CircleSector
的类,它绘制了一个PIChart
如果我从form1
调用该类,则无法绘制PIChart
这是我的密码:
表格1:
public void button1_Click(object sender, EventArgs e)
{
int textdata = Convert.ToInt32(textBox1.Text);
CS = new CircleSector(textdata, this);
// CS.GetGraphicSector(this);
}
public CircleSector(int TextData , Form1 D)
{
Pen CirclePen = new Pen(Color.Black);
Rect = new Rectangle(XAxis, YAxis, CircleRadius, CircleRadius);
float temp1 = 0;
SectorCircle = this.CreateGraphics();
PIVal = - 360 / TextData;
float temp2 = PIVal;
for (int i = 0; i <= TextData; i++)
{
m_Value = i;
SectorCircle.DrawPie(CirclePen, Rect, 0, temp2);
temp1 = temp2;
temp2 = temp2 - PIVal;
}
// MessageBox.Show("Mouse Pressed");
// return SectorCircle;
}
CircleSector:
public void button1_Click(object sender, EventArgs e)
{
int textdata = Convert.ToInt32(textBox1.Text);
CS = new CircleSector(textdata, this);
// CS.GetGraphicSector(this);
}
public CircleSector(int TextData , Form1 D)
{
Pen CirclePen = new Pen(Color.Black);
Rect = new Rectangle(XAxis, YAxis, CircleRadius, CircleRadius);
float temp1 = 0;
SectorCircle = this.CreateGraphics();
PIVal = - 360 / TextData;
float temp2 = PIVal;
for (int i = 0; i <= TextData; i++)
{
m_Value = i;
SectorCircle.DrawPie(CirclePen, Rect, 0, temp2);
temp1 = temp2;
temp2 = temp2 - PIVal;
}
// MessageBox.Show("Mouse Pressed");
// return SectorCircle;
}
PublicCircleSector(int-TextData,Form1d)
{
钢笔圈笔=新钢笔(颜色为黑色);
Rect=新矩形(XAxis、YAxis、CircleRadius、CircleRadius);
浮点数1=0;
SectorCircle=this.CreateGraphics();
PIVal=-360/文本数据;
float temp2=PIVal;
对于(inti=0;i我认为问题就在这里
SectorCircle = this.CreateGraphics();
试试这个
SectorCircle = D.CreateGraphics();
还有问题吗?谢谢。问题就出在这里。CreateGraphics()@user3458123如果你得到了解决方案,那么别忘了接受答案?接受答案将有助于了解其他人在这种情况下哪种解决方案是最好的。你还应该在使用后处理SectorCircle。