如何使用savefiledialog将图表保存为图像? [英] how to save a chart graph as image using savefiledialog?

问题描述

hi ..如何使用savefiledialog将图表图形另存为图像?我已经得到一个图表，并且我想单击菜单栏中的另存为"以将图形另存为.jpeg，.bitmap和.gif文件.我在窗体上创建菜单条，然后在其上创建将图形另存为.."功能.然后，当我单击它时，将弹出一个窗口，询问哪种文件类型(.jpeg，.bitmap). ，.gif)以及要保存的文件名.但是该图是用户控件.我该怎么做?您能提供一些代码供我参考吗?谢谢)=)

hi..how to save a chart graph as image using savefiledialog?i already get a graph,and i want to click save graph as in the menu bar to save the graph as .jpeg,.bitmap and .gif file..I create a menu stript on the Form and I want to create a function of "save graph as.." on it.Then when I click it, a window will pop up to ask which type of file(.jpeg,.bitmap,.gif) and what filename to be saved.But the graph is a user control.how can I do it?Would you provide me some code for reference?Thanks.=)

推荐答案

假定您正在使用Microsoft .NET图表组件，则可以使用以下代码:

Assuming you are using the Microsoft .NET charting component, you may use this code:

private void button1_Click(object sender, EventArgs e)
{
  SaveFileDialog dlg = new SaveFileDialog();
  if(dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK)
    this.chart1.SaveImage(dlg.FileName, ChartImageFormat.Png);
}

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