gridview 添加进度条
1.ChartHandler.ashx
<%@ WebHandler Language=
"
C#
" Class=
"
ChartHandlerTest
" %>
using System;
using System.Web;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
public class ChartHandlerTest : IHttpHandler {
public void ProcessRequest (HttpContext context) {
decimal ounitprice = decimal.Parse(context.Request.QueryString[ " outprice "]);
decimal punitprice = decimal.Parse(context.Request.QueryString[ " inprice "]);
using (Bitmap bitmap = new Bitmap( 100, 40))
{
using (Graphics graphics = Graphics.FromImage(bitmap))
{
graphics.SmoothingMode = SmoothingMode.AntiAlias;
graphics.Clear(Color.White);
Rectangle rect = new Rectangle( 0, 0, 100, 40);
graphics.DrawRectangle(Pens.Black, rect);
int width = Convert.ToInt32(ounitprice * 100 / punitprice);
Rectangle fillRect = new Rectangle( 0, 0, width, 40);
graphics.FillRectangle(Brushes.Red, fillRect);
context.Response.ContentType = " text/gif ";
context.Response.Clear();
context.Response.BufferOutput = true;
bitmap.Save(context.Response.OutputStream, ImageFormat.Gif);
}
}
}
public bool IsReusable {
get {
return false;
}
}
}
using System;
using System.Web;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
public class ChartHandlerTest : IHttpHandler {
public void ProcessRequest (HttpContext context) {
decimal ounitprice = decimal.Parse(context.Request.QueryString[ " outprice "]);
decimal punitprice = decimal.Parse(context.Request.QueryString[ " inprice "]);
using (Bitmap bitmap = new Bitmap( 100, 40))
{
using (Graphics graphics = Graphics.FromImage(bitmap))
{
graphics.SmoothingMode = SmoothingMode.AntiAlias;
graphics.Clear(Color.White);
Rectangle rect = new Rectangle( 0, 0, 100, 40);
graphics.DrawRectangle(Pens.Black, rect);
int width = Convert.ToInt32(ounitprice * 100 / punitprice);
Rectangle fillRect = new Rectangle( 0, 0, width, 40);
graphics.FillRectangle(Brushes.Red, fillRect);
context.Response.ContentType = " text/gif ";
context.Response.Clear();
context.Response.BufferOutput = true;
bitmap.Save(context.Response.OutputStream, ImageFormat.Gif);
}
}
}
public bool IsReusable {
get {
return false;
}
}
}
2.test.aspx
<body>
<form id= " form1 " runat= " server ">
<div>
<asp:GridView ID= " GridView1 " runat= " server " AutoGenerateColumns= " False " DataSourceID= " SqlDataSource1 ">
<Columns>
<asp:BoundField DataField= " pjid " HeaderText= " pjid " SortExpression= " pjid " />
<asp:BoundField DataField= " paid " HeaderText= " paid " InsertVisible= " False "
ReadOnly= " True " SortExpression= " paid " />
<asp:BoundField DataField= " outprice " HeaderText= " outprice " SortExpression= " outprice " />
<asp:BoundField DataField= " inprice " HeaderText= " inprice " SortExpression= " inprice " />
<asp:TemplateField HeaderText= " 百分比 ">
<ItemTemplate>
<img src= ' <%# "ChartHandlerTest.ashx?outprice=" + Eval("outprice") + "&inprice=" + Eval("inprice")%> ' alt= ' <%# "完成情况:" + (Convert.ToDecimal(Eval("outprice")) * 100 / Convert.ToDecimal(Eval("inprice"))).ToString("F2") + "%" %> '/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<br />
<br />
<asp:SqlDataSource ID= " SqlDataSource1 " runat= " server "
ConnectionString= " Data Source=10.10.0.33;Initial Catalog=aeadmin;User ID=snow;Password=abc12 "
ProviderName= " System.Data.SqlClient "
SelectCommand= " select pjid,paid,outprice,inprice from testWW ">
</asp:SqlDataSource>
</div> </form></body>
<form id= " form1 " runat= " server ">
<div>
<asp:GridView ID= " GridView1 " runat= " server " AutoGenerateColumns= " False " DataSourceID= " SqlDataSource1 ">
<Columns>
<asp:BoundField DataField= " pjid " HeaderText= " pjid " SortExpression= " pjid " />
<asp:BoundField DataField= " paid " HeaderText= " paid " InsertVisible= " False "
ReadOnly= " True " SortExpression= " paid " />
<asp:BoundField DataField= " outprice " HeaderText= " outprice " SortExpression= " outprice " />
<asp:BoundField DataField= " inprice " HeaderText= " inprice " SortExpression= " inprice " />
<asp:TemplateField HeaderText= " 百分比 ">
<ItemTemplate>
<img src= ' <%# "ChartHandlerTest.ashx?outprice=" + Eval("outprice") + "&inprice=" + Eval("inprice")%> ' alt= ' <%# "完成情况:" + (Convert.ToDecimal(Eval("outprice")) * 100 / Convert.ToDecimal(Eval("inprice"))).ToString("F2") + "%" %> '/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<br />
<br />
<asp:SqlDataSource ID= " SqlDataSource1 " runat= " server "
ConnectionString= " Data Source=10.10.0.33;Initial Catalog=aeadmin;User ID=snow;Password=abc12 "
ProviderName= " System.Data.SqlClient "
SelectCommand= " select pjid,paid,outprice,inprice from testWW ">
</asp:SqlDataSource>
</div> </form></body>