我想在asp.net 4中使用zedgraph。但我得到下面的 erros :
System.IO.DirectoryNotFoundException
:
Could not find a part of the path C:\Users\stn-1\Desktop\ZedGraphWebAp1_CompiledSite8 \ZedGraphImages\ZedGraphWeb1fc6eb2c0-023a-4818-bff9-9c957971af4b.png
。在System.IO .__ Error.WinIOError(Int32 errorCode,String maybeFullPath)at System.IO.FileStream.Init(String path,FileMode mode,FileAccess access,Int32 rights,Boolean useRights,FileShare share,Int32 bufferSize,FileOptions options,SECURITY_ATTRIBUTES secAttrs) ,String msgPath,Boolean bFromProxy,Boolean useLongPath),位于ZedGraph.Web.ZedGraphWeb.Render(HtmlTextWriter输出)的System.IO.FileStream..ctor(字符串路径,FileMode模式,FileAccess访问,FileShare共享)
我使用下面的代码:
protected void ZedGraphWeb1_RenderGraph(ZedGraphWeb webObject, System.Drawing.Graphics g, MasterPane pane)
{
GraphPane myPane = pane[0];
myPane.Title.Text = "Title";
myPane.XAxis.Title.Text = "X axis label";
myPane.YAxis.Title.Text = "Y axis label";
PointPairList list1 = new PointPairList();
for (int i = 0; i < 10; i++)
{
double x = Convert.ToDouble(i);
double y = x * x;
list1.Add(x, y);
}
string textForLegend = "x-squared";
myPane.CurveList.Clear();
LineItem myCurve = myPane.AddCurve(textForLegend,
list1, Color.Red, SymbolType.Diamond);
myCurve.Symbol.IsVisible = true;
}
答案 0 :(得分:3)
原因是zedgraph不会在根文件夹中自动创建文件夹名称“ZedGraphImages”...您应该手动创建它...