更改此行 您的代码
< asp：ImageField HeaderText =  图像 ItemStyle-Width =    50px DataImageUrlField =   ImagePath  
 ControlStyle-Width =   100 ControlStyle-Height =   100 /> 

Hi,
In my website, I used Gridview to show images but it shows the full size of image. But I need to control the size of image. Plese suggest me.

this is my gridview:

<asp:GridView ID="GridView1" runat="server"

              AutoGenerateColumns="False"

              DataSourceID="SqlDataSource1" AllowPaging="True"

            EnableSortingAndPagingCallbacks="True" ForeColor="#333333" CellPadding="4"

            GridLines="None" PageSize="3">
    <AlternatingRowStyle BackColor="White" />
<Columns>
<asp:BoundField DataField="ID" HeaderText="ID" SortExpression="ID" />
<asp:BoundField DataField="ImageName" HeaderText="Image Name"

        SortExpression="ImageName" />
    <asp:ImageField HeaderText="Image"   ItemStyle-Width="50px" DataImageUrlField="ImagePath" />

change this line in your code 
<asp:ImageField HeaderText="Image"   ItemStyle-Width="50px" DataImageUrlField="ImagePath"  
ControlStyle-Width="100" ControlStyle-Height = "100"  />