我正在尝试完全在代码隐藏中创建一个 .net 图表控件，并将该图表插入网页上的特定位置。
这是我的 html 页面:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div id="chart"></div>
</form>
</body>
</html>
下面是代码:
using System;
using System.Drawing;
using System.Web.UI.DataVisualization.Charting;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//SET UP THE DATA TO PLOT
double[] yVal = { 80, 20 };
string[] xName = { "Pass", "Fail" };
//CREATE THE CHART
Chart Chart1 = new Chart();
//BIND THE DATA TO THE CHART
Chart1.Series.Add(new Series());
Chart1.Series[0].Points.DataBindXY(xName, yVal);
//SET THE CHART TYPE TO BE PIE
Chart1.Series[0].ChartType = System.Web.UI.DataVisualization.Charting.SeriesChartType.Pie;
Chart1.Series[0]["PieLabelStyle"] = "Outside";
Chart1.Series[0]["PieStartAngle"] = "-90";
//SET THE COLOR PALETTE FOR THE CHART TO BE A PRESET OF NONE
//DEFINE OUR OWN COLOR PALETTE FOR THE CHART
Chart1.Palette = System.Web.UI.DataVisualization.Charting.ChartColorPalette.None;
Chart1.PaletteCustomColors = new Color[] { Color.Blue, Color.Red };
//SET THE IMAGE OUTPUT TYPE TO BE JPEG
Chart1.ImageType = System.Web.UI.DataVisualization.Charting.ChartImageType.Jpeg;
//ADD A PLACE HOLDER CHART AREA TO THE CHART
//SET THE CHART AREA TO BE 3D
Chart1.ChartAreas.Add(new ChartArea());
Chart1.ChartAreas[0].Area3DStyle.Enable3D = true;
//ADD A PLACE HOLDER LEGEND TO THE CHART
//DISABLE THE LEGEND
Chart1.Legends.Add(new Legend());
Chart1.Legends[0].Enabled = false;
}
}
我想在 id="chart"的 div 中呈现图表控件
感谢您的帮助!
最佳答案
假设您顺利安装了图表框架:-
查看:-
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div id="chart"></div>
<asp:Chart id="Chart1" runat="server"/>
</form>
</body>
</html>
代码隐藏:-
using System;
using System.Drawing;
using System.Web.UI.DataVisualization.Charting;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//SET UP THE DATA TO PLOT
double[] yVal = { 80, 20 };
string[] xName = { "Pass", "Fail" };
//CREATE THE CHART
// Don't need to create the chart because it's a control!
//BIND THE DATA TO THE CHART
Chart1.Series.Add(new Series());
Chart1.Series[0].Points.DataBindXY(xName, yVal);
//SET THE CHART TYPE TO BE PIE
Chart1.Series[0].ChartType = System.Web.UI.DataVisualization.Charting.SeriesChartType.Pie;
Chart1.Series[0]["PieLabelStyle"] = "Outside";
Chart1.Series[0]["PieStartAngle"] = "-90";
//SET THE COLOR PALETTE FOR THE CHART TO BE A PRESET OF NONE
//DEFINE OUR OWN COLOR PALETTE FOR THE CHART
Chart1.Palette = System.Web.UI.DataVisualization.Charting.ChartColorPalette.None;
Chart1.PaletteCustomColors = new Color[] { Color.Blue, Color.Red };
//SET THE IMAGE OUTPUT TYPE TO BE JPEG
Chart1.ImageType = System.Web.UI.DataVisualization.Charting.ChartImageType.Jpeg;
//ADD A PLACE HOLDER CHART AREA TO THE CHART
//SET THE CHART AREA TO BE 3D
Chart1.ChartAreas.Add(new ChartArea());
Chart1.ChartAreas[0].Area3DStyle.Enable3D = true;
//ADD A PLACE HOLDER LEGEND TO THE CHART
//DISABLE THE LEGEND
Chart1.Legends.Add(new Legend());
Chart1.Legends[0].Enabled = false;
}
}
关于c# - 如何将在代码隐藏中创建的图表添加到呈现的 html 页面？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/2454293/