有人做过股票K线图没有?怎样在自己的网站实现股票K线图?
RT,我需要6支股票的股票K线图
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UP一下 我也想知道呢
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up
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用activex控件可以实现，但是股票的数据不知道有没有提供web services的
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呵呵,我刚做好个,不过比较简单的.
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up
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给你里面的两个函数吧,整体太麻烦了.
public void AppendLine(string colname, string linecolor, int marks)
{
//个股走势
int prevX = 0, prevY = 0;
int m = chartData.Rows.Count;
for (int i = 0; i < chartData.Rows.Count; i++)
{
DataRow ds = chartData.Rows[i];
string dsk = ds[colname].ToString();
int k = Convert.ToInt32((Convert.ToDouble(ds[colname])));
int tmpx = this.xMargin + i * chartWidth / xSpan;
int tmpy = this.chartHeight + this.yMargin - Convert.ToInt32((Convert.ToDouble(ds[colname]) - minVal) / (ySpan * 1.0 / chartHeight));
if (i > 0)
{
sb.Append( " <v:line style= 'position:absolute;left:0;text-align:left;top:0;z-index:1 ' from= ' " + prevX.ToString() + ", " + prevY.ToString() + " ' to= ' " + tmpx.ToString() + ", " + tmpy.ToString() + " ' ");
sb.Append( " strokecolor= ' " + linecolor + " ' strokeweight= 'thin '> ");
sb.Append( " </v:line> ");
}
DrawMarks(marks, tmpx, tmpy, ds);
prevX = tmpx;
prevY = tmpy;
}
}
private void DrawMarks(int marks, int xPos, int yPos,DataRow dr)
{
for (int i = 1; i < marks+1; i++)
{
string mark1 = dr[ "mark "+i.ToString()].ToString();
string mark1html = dr[ "mark "+i.ToString()+ "html "].ToString();
if (mark1 != " ")
{
sb.Append( " <v:shape id= '_x0000_s1025 ' type= '#_x0000_t202 ' alt= ' " + mark1 + " ' ");
sb.Append( "style= 'position:absolute;left: " + xPos.ToString() + ";top: " + yPos.ToString() + ";width:2000;height:2000;z-index:5 '> ");
sb.Append( " <v:textbox inset= '0,0,0,0 '> ");
sb.Append( " <table cellspacing= '0 ' cellpadding= '0 ' width= '100% ' height= '100% ' > ");
sb.Append( " <tr> <td align= 'left ' style= 'cursor:hand ' title= ' " + mark1 + " '> ");
sb.Append(mark1html + " </td> </tr> </table> ");
sb.Append( " </v:textbox> </v:shape> ");
yPos -= 2000;
}
else
{
break;
}
}
}
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public void AppendLine(string colname, string linecolor, int marks)
{
//个股走势
int prevX = 0, prevY = 0;
int m = chartData.Rows.Count;
for (int i = 0; i < chartData.Rows.Count; i++)
{
DataRow ds = chartData.Rows[i];
string dsk = ds[colname].ToString();
int k = Convert.ToInt32((Convert.ToDouble(ds[colname])));
int tmpx = this.xMargin + i * chartWidth / xSpan;
int tmpy = this.chartHeight + this.yMargin - Convert.ToInt32((Convert.ToDouble(ds[colname]) - minVal) / (ySpan * 1.0 / chartHeight));
if (i > 0)
{
sb.Append( " <v:line style= 'position:absolute;left:0;text-align:left;top:0;z-index:1 ' from= ' " + prevX.ToString() + ", " + prevY.ToString() + " ' to= ' " + tmpx.ToString() + ", " + tmpy.ToString() + " ' ");
sb.Append( " strokecolor= ' " + linecolor + " ' strokeweight= 'thin '> ");
sb.Append( " </v:line> ");
}
DrawMarks(marks, tmpx, tmpy, ds);
prevX = tmpx;
prevY = tmpy;
}
}
private void DrawMarks(int marks, int xPos, int yPos,DataRow dr)
{
for (int i = 1; i < marks+1; i++)
{
string mark1 = dr[ "mark "+i.ToString()].ToString();
string mark1html = dr[ "mark "+i.ToString()+ "html "].ToString();
if (mark1 != " ")
{
sb.Append( " <v:shape id= '_x0000_s1025 ' type= '#_x0000_t202 ' alt= ' " + mark1 + " ' ");
sb.Append( "style= 'position:absolute;left: " + xPos.ToString() + ";top: " + yPos.ToString() + ";width:2000;height:2000;z-index:5 '> ");
sb.Append( " <v:textbox inset= '0,0,0,0 '> ");
sb.Append( " <table cellspacing= '0 ' cellpadding= '0 ' width= '100% ' height= '100% ' > ");
sb.Append( " <tr> <td align= 'left ' style= 'cursor:hand ' title= ' " + mark1 + " '> ");
sb.Append(mark1html + " </td> </tr> </table> ");
sb.Append( " </v:textbox> </v:shape> ");
yPos -= 2000;
}
else
{
break;
}
}
}
public void AppendLine(string colname,string linecolor)
{
//个股走势
int prevX = 0, prevY = 0;
for (int i = 0; i < chartData.Rows.Count; i++)
{
DataRow ds = chartData.Rows[i];
int tmpx = this.xMargin + i * chartWidth / xSpan;
int tmpy = this.chartHeight + this.yMargin - Convert.ToInt32((Convert.ToDouble(ds[colname]) - minVal) / (ySpan * 1.0 / chartHeight));
if (i > 0)
{
sb.Append( " <v:line style= 'position:absolute;left:0;text-align:left;top:0;z-index:1 ' from= ' " + prevX.ToString() + ", " + prevY.ToString() + " ' to= ' " + tmpx.ToString() + ", " + tmpy.ToString() + " ' ");
sb.Append( " strokecolor= ' "+linecolor+ " ' strokeweight= 'thin '> ");
sb.Append( " </v:line> ");
}
prevX = tmpx;
prevY = tmpy;
}
}
public void DrawChartEnd()
{
sb.Append( " </v:group> ");
}
private void ChartInit()
{
CalcYBorder();
sb=new StringBuilder();
chartHeight = 18000; //图表高度
chartWidth = 18000; //图表宽度
int xPoints = 10;
xSpan = this.chartData.Rows.Count; //数据总数
intevalX = xSpan / xPoints;//X坐标轴刻度间点数；
scaleX = (chartWidth / xSpan) * intevalX; //最好为Width值的倍数(刻度间象素)
scaleY = 3000;
countX = chartWidth / scaleX; //X轴实际点数
countY = chartHeight / scaleY;//Y轴实际点数
ySpan = maxVal - minVal; //Y轴间隔实际值
if (intevalX == 0)
{
intevalX = 1;
}
DrawChartStart();
}
private void CalcYBorder()
{
if (maxVal > 0)
{
maxVal = maxVal * 1.2;
}
else
{
maxVal = maxVal * 0.8;
}
if (minVal > 0)
{
minVal = minVal * 0.8;
}
else
{
minVal = minVal * 1.2;
}
}
}
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佩服楼上
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sb是从哪实例化来的？
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顶者有分，听着
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起码把你的datatable的格式说下,
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up
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up
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支持
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http://www.wave12.com/web/SigCon.asp?bCate=41&sCateName=K%20线图&ID=168&CateName=wsChart4.5(DLL)
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楼主用那些图表控件不行么？
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不错
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建议使用ComponentOne Studio Enterprise中的
WebChart，具有k线图的类型，使用起来很方便的。
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好像很多网站是动态生成一个图片，然后显示到Web上
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up
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学习了
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借人气再问个问题
2003下面的treeview控件上传到服务器后失效时怎么回事？
我把aspnet_client和webctrl_client都拷到根目录了阿，在本地正常 .
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aspnet_client版本或webctrl_client路径不对
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我做过生成图片的 ice613@sina.com
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建议用WebChart控件
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用ATGrid报表图表控件实现
www.etcell.com
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treeview控件上传到服务器后失效
服务器上没安装这个控件吧,得先安装一下,不行重装.2003安装常出现这个问题
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treeview控件上传到服务器后失效时怎么回事?
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可能生成的public token有错！客户端与服务器端注册此控件的时候不一样！
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都是高手啊
这些问题，路过看看
UP
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我做过,模拟K线和月线图,后台用C#画就可以了
http://www.q22.cn/UploadFile/2007-1/20071231313377941.gif
http://www.q22.cn/UploadFile/2007-1/20071231313944433.gif 月线
http://www.q22.cn/UploadFile/2007-1/20071231314551239.gif K线
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teeChart For .Net 绝对棒，我刚用过
