在gridview中缩放图像

我是asp.net的新手。我有gridview显示数据库中的数据。其中一个字段包含图像。动态显示为图像路径的图像存储在数据库中。我的表中包含的字段 Car_Name Car_Id Car_Photo No_of_Seats在gridview中缩放图像
现在我想的是，当用户点击图像我想模态弹出图像.....或图像应放大类似的东西.. ..
<%@ Page Title="" Language="C#" MasterPageFile="~/Project/MasterPage/MasterPage.master" 
    AutoEventWireup="true" CodeFile="Reserve.aspx.cs" Inherits="Project_Reserve_Reserve" %> 

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %> 
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server"> 
    <link href="reserve.css" rel="stylesheet" type="text/css" /> 
    <script src="../../javascript/jquery-1.9.0.js" type="text/javascript"></script> 
    <%-- <script src="myscript.js" type="text/javascript"></script> 
    <script src="f12.js" type="text/javascript"></script>--%> 
</asp:Content> 
<asp:Content ID="Content2" ContentPlaceHolderID="homepageContentPlaceHolder" runat="Server"> 
    <asp:ScriptManager ID="ScriptManager1" runat="server"> 
    </asp:ScriptManager> 
    <asp:UpdatePanel ID="UpdatePanel1" runat="server"> 
     <ContentTemplate> 
      Select Start Date&nbsp;&nbsp; 
      <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> 
      <asp:CalendarExtender ID="TextBox1_CalendarExtender" runat="server" Enabled="True" 
       TargetControlID="TextBox1"> 
      </asp:CalendarExtender> 
      <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="TextBox1" 
       ErrorMessage="*"></asp:RequiredFieldValidator> 
      <br /> 
      <br /> 
      Select End Date&nbsp;&nbsp;&nbsp; 
      <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox> 
      <asp:CalendarExtender ID="TextBox2_CalendarExtender" runat="server" Enabled="True" 
       TargetControlID="TextBox2"> 
      </asp:CalendarExtender> 
      <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="TextBox2" 
       ErrorMessage="*"></asp:RequiredFieldValidator> 
      <asp:AnimationExtender ID="RequiredFieldValidator2_AnimationExtender" runat="server" 
       Enabled="True" TargetControlID="RequiredFieldValidator2"> 
      </asp:AnimationExtender> 
      <br /> 
      <br /> 
      <br /> 
      Select Model&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<asp:DropDownList ID="ddlModel" runat="server" 
       AppendDataBoundItems="True" AutoPostBack="True" DataSourceID="SqlDataSource1" 
       DataTextField="Model_Name" DataValueField="Model_Id" OnSelectedIndexChanged="ddlModel_SelectedIndexChanged" 
       Width="100px"> 
       <asp:ListItem Value="0">--Select--</asp:ListItem> 
      </asp:DropDownList> 
      &nbsp;<asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ControlToValidate="ddlModel" 
       ErrorMessage="Select a Model"></asp:RequiredFieldValidator> 
      <br /> 
      <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>" 
       SelectCommand="SELECT * FROM [Model]"></asp:SqlDataSource> 
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <br /> 
      <br /> 
      <br /> 
      <asp:GridView ID="gvcar" runat="server" AllowPaging="True" AutoGenerateColumns="False" 
       CellPadding="4" ForeColor="#333333" GridLines="None" EmptyDataText="No data found!"> 
       <AlternatingRowStyle BackColor="White" ForeColor="#284775" /> 
       <Columns> 
        <asp:TemplateField HeaderText="Select"> 
         <ItemTemplate> 
          <asp:CheckBox ID="CheckBox1" runat="server" /> 
         </ItemTemplate> 
        </asp:TemplateField> 
        <asp:BoundField DataField="Car_Name" HeaderText="Car Name" /> 
        <asp:BoundField DataField="No_of_Seats" HeaderText="Seats" /> 
        <asp:TemplateField HeaderText="Photo"> 
         <ItemTemplate> 
          <asp:Image Width="300" Height="200" ID="Image1" runat="server" ImageUrl='<%# Eval("Car_Photo") %>' /> 
         </ItemTemplate> 
        </asp:TemplateField> 

       </Columns> 
       <EmptyDataTemplate> 
        <div> 
         <h3> 
          <em>Sorry...No Car is available rightnow for this model</em></h3> 
        </div> 
       </EmptyDataTemplate> 
       <EditRowStyle BackColor="#999999" /> 
       <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" /> 
       <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" /> 
       <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" /> 
       <RowStyle BackColor="#F7F6F3" ForeColor="#333333" /> 
       <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" /> 
       <SortedAscendingCellStyle BackColor="#E9E7E2" /> 
       <SortedAscendingHeaderStyle BackColor="#506C8C" /> 
       <SortedDescendingCellStyle BackColor="#FFFDF8" /> 
       <SortedDescendingHeaderStyle BackColor="#6F8DAE" /> 
      </asp:GridView> 
      <asp:Button runat="server" ID="btnModalPopUp" Style="display: none" /> 

      <br /> 
      <br /> 
      <br /> 
      <asp:Button ID="btnbook" runat="server" Text="Book" /> 
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      <asp:Button ID="btnCancel" runat="server" Text="Cancel" /> 
      <br /> 
      <br /> 
     </ContentTemplate> 
    </asp:UpdatePanel> 
</asp:Content>
来源
2013-04-05 steve
在gridview中缩放图像

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