aspx
<body>
<form id="form1" runat="server">
<div>
<asp:ListView ID="ListView1" runat="server"
OnItemEditing="ListView1_ItemEditing" onitemupdating="ListView1_ItemUpdating"
onitemcanceling="ListView1_ItemCanceling"
onpagepropertieschanging="ListView1_PagePropertiesChanging"
DataKeyNames="id" onitemdeleting="ListView1_ItemDeleting">
<ItemTemplate>
<asp:ImageButton id="ProductImage" ImageUrl='<%#DataBinder.Eval(Container.DataItem, "imageUrl")%>' Height="150px" Width ="200px" runat="server"/>
<asp:LinkButton ID="LinkButton1" runat="server" CommandName="Edit">Edit</asp:LinkButton>
<asp:LinkButton ID="LinkButton4" runat="server" CommandName="Delete">Delete</asp:LinkButton>
<br />
</ItemTemplate>
<EditItemTemplate>
<asp:ImageButton id="ProductImage" ImageUrl='<%#DataBinder.Eval(Container.DataItem, "imageUrl")%>' Height="150px" Width ="200px" runat="server"/>
图片名称: <asp:TextBox ID="txtimageName" runat="server" Text='<%#Eval("imageName")%>'></asp:TextBox>
图片路径: <asp:TextBox ID="txtimageUrl" runat="server" Text='<%#Eval("imageUrl")%>'></asp:TextBox>
<asp:LinkButton ID="LinkButton2" runat="server" CommandName="Update">Update</asp:LinkButton>
<asp:LinkButton ID="LinkButton3" runat="server" CommandName="Cancle">Cancle</asp:LinkButton>
<br />
</EditItemTemplate> </asp:ListView>
<asp:DataPager ID="DataPager1" runat="server" PagedControlID="ListView1" PageSize="">
<Fields>
<asp:NextPreviousPagerField ButtonType="Button" ShowFirstPageButton="True"
ShowLastPageButton="True" />
</Fields>
</asp:DataPager>
</div>
</form>
</body>
aspx.cs
public partial class _240ListViewEdit : System.Web.UI.Page
{
ShowImageBll ShowImageBll = new BLL.ShowImageBll();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
bindDL(); }
}
public void bindDL()
{
//绑定数据源
DataSet ds = ShowImageBll.GetList();
ListView1.DataSource = ds;
ListView1.DataBind(); } protected void ListView1_PagePropertiesChanging(object sender, PagePropertiesChangingEventArgs e)
{
this.DataPager1.SetPageProperties(e.StartRowIndex, e.MaximumRows, false); bindDL();
} protected void ListView1_ItemEditing(object sender, ListViewEditEventArgs e)
{
ListView1.EditIndex = e.NewEditIndex;
bindDL();
} protected void ListView1_ItemUpdating(object sender, ListViewUpdateEventArgs e)
{
int id =int.Parse(ListView1.DataKeys[e.ItemIndex].Value.ToString());
TextBox txtimageName = ListView1.Items[e.ItemIndex].FindControl("txtimageName") as TextBox;
TextBox txtimageUrl = ListView1.Items[e.ItemIndex].FindControl("txtimageUrl") as TextBox;
string imageName = txtimageName.Text;// Read in the imageUr
string imageUrl = txtimageUrl.Text;// Read in the imageUr
ShowImageBll.UpdateList(id, imageUrl, imageName); // Call the ShowImageBll's UpadteDataLis method...
Response.Write("<script>alert('更新成功！')</script>");
bindDL();
} protected void ListView1_ItemCanceling(object sender, ListViewCancelEventArgs e)
{
ListView1.EditIndex = -; bindDL(); } protected void ListView1_ItemDeleting(object sender, ListViewDeleteEventArgs e)
{
int id = int.Parse(ListView1.DataKeys[e.ItemIndex].Value.ToString());
ShowImageBll.DeleteSingleList(id);
Response.Write("<script>alert('删除成功！')</script>");
bindDL(); ;//重新绑定数据库
}
总结：
【1】在Page_Load事件中，要把控件绑定数据的方法放在ispostback方法里面，以避免在页面加载的时候首
都要加载原来的数据，修改的数据无法更新的情况。
【2】使用DataPager控件给ListView控件分页时，需要编写ListView控件的lv_PagePropertiesChanging（）
时间，以使在进行翻页操作时控件的数据能及时更新到相应页面。
【3】遗留的问题：Cancle按钮不起作用