从SQL Server数据库提取图片并显示在DataGrid
日期：2012-05-08 浏览次数：20376 次
下面的代码实现从SQL Server数据库提取图片并显示在DataGrid的功能。
下面就是完整的代码，拷贝即可运行：
<%@ Page Language="vb" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<html>
<head>
<title>用户列表</title>
<script runat=server>
Sub Page_Load(sender As Object, e As EventArgs)
If Not Page.IsPostBack Then
BindGrid()
End If
End Sub
Private Sub BindGrid()
Dim strCnn As String = "Data Source=.;Initial Catalog=mxh;User Id=sa;Password=;"
Dim myConnection As SqlConnection = New SqlConnection(strCnn)
Dim myCommand As SqlCommand = New SqlCommand("SELECT * FROM Person", myConnection)
myCommand.CommandType = CommandType.Text
Try
myConnection.Open()
DG_Persons.DataSource = myCommand.ExecuteReader(CommandBehavior.CloseConnection)
DG_Persons.DataBind()
Catch SQLexc As SqlException
Response.Write("Error occured while Generating Data. Error is " & SQLexc.ToString())
End Try
End Sub
Function FormatURL(strArgument) as String
Return ("ReadImage.aspx?id=" & strArgument)
End Function
</script>
</head>
<body style="font: 9pt 宋体">
<h3 align=center>从数据库中取得照片并显示在DataGrid中</h3>
<form id="Form1" method="post" runat="server">
<asp:DataGrid ID="DG_Persons" AutoGenerateColumns=False Width="99%"
HeaderStyle-BackColor="#ff0000" HeaderStyle-Font-Bold="True" HeaderStyle-ForeColor="#ffffff"
ItemStyle-BackColor=Beige BorderColor="#000000" Runat=server HeaderStyle-HorizontalAlign=Center>
<Columns>
<asp:TemplateColumn HeaderText="姓名">
<ItemTemplate>
<asp:Label Runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "PersonName") %>' ID="Label1"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="电子邮件">
<ItemTemplate>
<asp:Label Runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "PersonEmail") %>' ID="Label2"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="性别">
<ItemTemplate>
<asp:Label Runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "PersonSex") %>' ID="Label3"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="出生日期">
<ItemTemplate>
<asp:Label Runat="server"
Text='<%# DataBinder.Eval(Container.DataItem, "PersonDOB") %>' ID="Label4"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="照片">
<ItemTemplate>
<asp:Image Runat=server ID="Image1" Width="150" Height="125"
ImageUrl='<%# FormatURL(DataBinder.Eval(Container.DataItem, "PersonID")) %>' />
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:DataGrid>
</form>
</body>
</html>
ReadImage.aspx
<%@ Page Language="vb" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<HTML>
<HEAD>
<script runat=server>
Public Sub Page_Load(sender As Object, e As EventArgs)
Dim strImageID as S
下面就是完整的代码，拷贝即可运行：
<%@ Page Language="vb" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<html>
<head>
<title>用户列表</title>
<script runat=server>
Sub Page_Load(sender As Object, e As EventArgs)
If Not Page.IsPostBack Then
BindGrid()
End If
End Sub
Private Sub BindGrid()
Dim strCnn As String = "Data Source=.;Initial Catalog=mxh;User Id=sa;Password=;"
Dim myConnection As SqlConnection = New SqlConnection(strCnn)
Dim myCommand As SqlCommand = New SqlCommand("SELECT * FROM Person", myConnection)
myCommand.CommandType = CommandType.Text
Try
myConnection.Open()
DG_Persons.DataSource = myCommand.ExecuteReader(CommandBehavior.CloseConnection)
DG_Persons.DataBind()
Catch SQLexc As SqlException
Response.Write("Error occured while Generating Data. Error is " & SQLexc.ToString())
End Try
End Sub
Function FormatURL(strArgument) as String
Return ("ReadImage.aspx?id=" & strArgument)
End Function
</script>
</head>
<body style="font: 9pt 宋体">
<h3 align=center>从数据库中取得照片并显示在DataGrid中</h3>
<form id="Form1" method="post" runat="server">
<asp:DataGrid ID="DG_Persons" AutoGenerateColumns=False Width="99%"
HeaderStyle-BackColor="#ff0000" HeaderStyle-Font-Bold="True" HeaderStyle-ForeColor="#ffffff"
ItemStyle-BackColor=Beige BorderColor="#000000" Runat=server HeaderStyle-HorizontalAlign=Center>
<Columns>
<asp:TemplateColumn HeaderText="姓名">
<ItemTemplate>
<asp:Label Runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "PersonName") %>' ID="Label1"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="电子邮件">
<ItemTemplate>
<asp:Label Runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "PersonEmail") %>' ID="Label2"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="性别">
<ItemTemplate>
<asp:Label Runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "PersonSex") %>' ID="Label3"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="出生日期">
<ItemTemplate>
<asp:Label Runat="server"
Text='<%# DataBinder.Eval(Container.DataItem, "PersonDOB") %>' ID="Label4"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="照片">
<ItemTemplate>
<asp:Image Runat=server ID="Image1" Width="150" Height="125"
ImageUrl='<%# FormatURL(DataBinder.Eval(Container.DataItem, "PersonID")) %>' />
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:DataGrid>
</form>
</body>
</html>
ReadImage.aspx
<%@ Page Language="vb" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<HTML>
<HEAD>
<script runat=server>
Public Sub Page_Load(sender As Object, e As EventArgs)
Dim strImageID as S
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