<%@ Page Language="VB"%> <script runat="server"> Sub Enter_Click(Sender As Object, E As EventArgs) myimage.ImageUrl="showimage.aspx?thenumber=" & thenumber.Text myimage.Visible=True End Sub </script><html> <body> <p>请输入4位数字，就会自动生成由4位数字组成的图片 <form runat=server> 请输入四位数字： <asp:textbox id="thenumber" runat="server" /> <asp:RequiredFieldValidator id="require1" ControlToValidate="thenumber" ErrorMessage="必须输入四位数字" runat="server"/> <asp:RegularExpressionValidator id="Regular2" ControlToValidate="thenumber" ValidationExpression="[0-9]{4}" ErrorMessage="必须输入四位数字" runat="server" /> <br> <asp:button id="enter" text="确定" Onclick="Enter_Click" runat="server" /> <p> <asp:image id="myimage" visible="False" runat="server"/> </form> </body> </html>----------------<%@ Import Namespace="System.IO"%> <%@ Import Namespace="System.Drawing"%> <%@ Import Namespace="System.Drawing.Imaging"%> <Script Language="VB" Runat="Server"> Sub Page_Load(Sender As Object,E as Eventargs) '获取传过来的数字字符串，注意本例规定必须是4个数字组成的字符串 Dim numTemp As String =Request.QueryString("theNumber") '下面一段其实是建立一个空白的点阵图像，然后等待下面将数字图像填充到该空白图片中****************** '建立点阵图像对象实例,也就是建立一个空白的图像，3个参数依次为图像的宽、高和图片格式 Dim bmp As New Bitmap(70,25,PixelFormat.Format24bppRgb) '建立一个Graphics图像对象，并载入刚刚建立的bmp点阵对象实例 Dim grh As Graphics = Graphics.FromImage(bmp)
'下面一段其实是根据数字读取相应的数字图片，并将其填充到上面建立的空白图片中******************** '下面逐个读取4张图片，并将其添加到上面建立的grh对象中 Dim img As System.Drawing.Image Dim I As Integer,picPath As String For I=1 To 4 '根据数字获取对应的图片物理路径 picPath=Server.Mappath("images/" & Mid(numTemp,I,1) & ".gif") '读取该图片到Image对象中 img=System.Drawing.Image.FromFile(picPath) '将该图像输出到图片的指定位置，Point有两个参数，分别是图像距左边和上边的距离 grh.DrawImage(img,New Point(3+Img.Width*(I-1),3)) Next
'将声成图片以Jpeg格式保存到输出流中，也就是会显示在页面上 bmp.Save(Response.OutputStream,System.Drawing.Imaging.ImageFormat.Jpeg) End Sub </Script>
<script runat="server">
Sub Enter_Click(Sender As Object, E As EventArgs)
myimage.ImageUrl="showimage.aspx?thenumber=" & thenumber.Text
myimage.Visible=True
End Sub
</script><html>
<body>
<p>请输入4位数字，就会自动生成由4位数字组成的图片
<form runat=server>
请输入四位数字：
<asp:textbox id="thenumber" runat="server" />
<asp:RequiredFieldValidator id="require1" ControlToValidate="thenumber" ErrorMessage="必须输入四位数字" runat="server"/>
<asp:RegularExpressionValidator id="Regular2" ControlToValidate="thenumber" ValidationExpression="[0-9]{4}" ErrorMessage="必须输入四位数字" runat="server" />
<br>
<asp:button id="enter" text="确定" Onclick="Enter_Click" runat="server" />
<p>
<asp:image id="myimage" visible="False" runat="server"/>
</form>
</body>
</html>----------------<%@ Import Namespace="System.IO"%>
<%@ Import Namespace="System.Drawing"%>
<%@ Import Namespace="System.Drawing.Imaging"%>
<Script Language="VB" Runat="Server">
Sub Page_Load(Sender As Object,E as Eventargs)
'获取传过来的数字字符串，注意本例规定必须是4个数字组成的字符串
Dim numTemp As String =Request.QueryString("theNumber") '下面一段其实是建立一个空白的点阵图像，然后等待下面将数字图像填充到该空白图片中******************
'建立点阵图像对象实例,也就是建立一个空白的图像，3个参数依次为图像的宽、高和图片格式
Dim bmp As New Bitmap(70,25,PixelFormat.Format24bppRgb)
'建立一个Graphics图像对象，并载入刚刚建立的bmp点阵对象实例
Dim grh As Graphics = Graphics.FromImage(bmp)
'下面一段其实是根据数字读取相应的数字图片，并将其填充到上面建立的空白图片中********************
'下面逐个读取4张图片，并将其添加到上面建立的grh对象中
Dim img As System.Drawing.Image
Dim I As Integer,picPath As String
For I=1 To 4
'根据数字获取对应的图片物理路径
picPath=Server.Mappath("images/" & Mid(numTemp,I,1) & ".gif")
'读取该图片到Image对象中
img=System.Drawing.Image.FromFile(picPath)
'将该图像输出到图片的指定位置，Point有两个参数，分别是图像距左边和上边的距离
grh.DrawImage(img,New Point(3+Img.Width*(I-1),3))
Next
'将声成图片以Jpeg格式保存到输出流中，也就是会显示在页面上
bmp.Save(Response.OutputStream,System.Drawing.Imaging.ImageFormat.Jpeg)
End Sub
</Script>
<html>
<head>
<title>客诉系统</title>
<link href="images/style.css" type="text/css" rel="stylesheet">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta http-equiv='refresh' content='100*10'>
<script language="javascript">
function openwin() {
window.open ("ballot_result.aspx", "newwindow", "height=200, top=100 , left=100 , width=400, toolbar =no, menubar=no, scrollbars=no, resizable=no, location=no, status=no")
}
</script>
</head>
<body width="100%" bgcolor="#CCCCFF" leftMargin="0" topMargin="0" rightMargin="0"><form enctype="multipart/form-data" runat="server"><table width="100%" border="0" cellspacing="0" cellpadding="0" align="center">
<center>
調查:這個客訴系統有作用嗎?<br>
<ASP:DataGrid id="MyList"
showheader=false
AllowPaging="True"
AllowSorting="true"
PageSize="50"
ShowFooter="false"
PagerStyle-Visible="false"
runat="server"
Width="100%"
GridLines="None"
CellPadding="0"
CellSpacing="1"
bgcolor="#CCCCFF"
HeaderStyle-BackColor="#CCCCFF"
HeaderStyle-ForeColor="#CCCCFF"
AlternatingItemStyle-BackColor="#ffffff"
itemstyle-backcolor="#ffffff"
Font-Name="宋体"
Font-Size="8pt"
EnableViewState="false"
AutoGenerateColumns="false"
DataKeyField="ballot_id">
<Columns>
<asp:TemplateColumn ItemStyle-Width="55%" HeaderText="主題">
<ItemTemplate>
<table>
<tr><td width="100%">
<%# DataBinder.Eval(Container.DataItem,"ballot_name").ToString()%>
<img src="images/bar.jpg" width="<%# DataBinder.Eval(Container.DataItem,"ballot_num").ToString()%>" height="10">
<%# DataBinder.Eval(Container.DataItem,"ballot_num").ToString()%>票
<%# SubStr(DataBinder.Eval(Container.DataItem,"sum2").ToString()) %>%
</td>
</tr></table>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:DataGrid>
</table><tr><td width="100%">
總票數:<asp:Label id="label2" runat="server"/>票
</td>
</tr></center>
</form>
</body>
</html>
------------------
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Configuration;
using System.Data.SqlClient; //这句不能少；否则不能那样连接数据库。呵呵！namespace scm
{ public class vendor_start : System.Web.UI.Page
{
public DataGrid MyList,MyList2;
protected System.Web.UI.WebControls.Label label1,label2;
public static int CalculateQRecord(string s)
{
try
{
DataRow dr=GetDataRow(s,"ballot");
return System.Convert.ToInt32(dr["sum1"].ToString());
}
catch
{
return 0;
}
} public static DataRow GetDataRow(string sql,string TableName)
{
try
{
SqlConnection sqlConnection=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["appeal"]);
SqlDataAdapter sqlAdapter1 = new SqlDataAdapter(sql, sqlConnection);
DataSet product = new DataSet();
sqlAdapter1.Fill(product, TableName);
return product.Tables[0].Rows[0];
}
catch (Exception ex)
{
throw (ex);
}
} private void Page_Load(object sender, System.EventArgs e)
{
if(!this.IsPostBack)
{
DataBind();
}
DataBind();
} DataView CreateDataSource()
{
string nowDSN=ConfigurationSettings.AppSettings["appeal"];
SqlConnection NewConn=new SqlConnection(nowDSN); SqlCommand myCommand2=new SqlCommand("SELECT sum(ballot_num) as sum1 FROM ballot",NewConn);
label2.Text = CalculateQRecord("SELECT sum(ballot_num) as sum1 FROM ballot").ToString(); //方法一
NewConn.Open();
//label1.Text=""+myCommand2.ExecuteScalar(); //方法二
SqlDataAdapter myCommand=new SqlDataAdapter("SELECT (ballot_num/(SELECT sum(ballot_num) as sum1 FROM ballot))*100 as sum2,ballot_id,ballot_name,ballot_num FROM ballot",NewConn);
DataSet ds = new DataSet();
myCommand.Fill(ds, "ballot");
return ds.Tables["ballot"].DefaultView; NewConn.Close();
Page.DataBind();
} void DataBind()
{
DataView source=CreateDataSource();
if(!IsPostBack)
{
}
MyList.DataSource = source;
MyList.DataBind();
} override protected void OnInit(EventArgs e)
{
InitializeComponent();
base.OnInit(e);
} private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
protected string SubStr(string aa)
{
aa=Server.UrlDecode(aa);
if(aa.Length>4)
{
aa=aa.Substring(0,4);
}
return aa;
}
}
}