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xml保存图片和读取图片(二)
3.ImageList.aspx
<%
@ Page language
=
"
c#
"
Codebehind
=
"
ImageList.aspx.cs
"
AutoEventWireup
=
"
false
"
Inherits
=
"
WebForm_Question2.ImageList
"
%>
<!
DOCTYPE HTML PUBLIC
"
-//W3C//DTD HTML 4.0 Transitional//EN
"
>
<
HTML
>
<
HEAD
>
<
title
>
ImageList
</
title
>
<
meta name
=
"
GENERATOR
"
Content
=
"
Microsoft Visual Studio .NET 7.1
"
>
<
meta name
=
"
CODE_LANGUAGE
"
Content
=
"
C#
"
>
<
meta name
=
"
vs_defaultClientScript
"
content
=
"
JavaScript
"
>
<
meta name
=
"
vs_targetSchema
"
content
=
"
http://schemas.microsoft.com/intellisense/ie5
"
>
</
HEAD
>
<
body MS_POSITIONING
=
"
GridLayout
"
>
<
form id
=
"
Form1
"
method
=
"
post
"
runat
=
"
server
"
>
<
TABLE id
=
"
Table1
"
style
=
"
Z-INDEX: 102; LEFT: 152px; WIDTH: 694px; POSITION: absolute; TOP: 16px; HEIGHT: 240px
"
cellSpacing
=
"
1
"
cellPadding
=
"
1
"
width
=
"
694
"
border
=
"
1
"
>
<
TR
>
<
TD align
=
"
center
"
style
=
"
HEIGHT: 34px
"
>
<
asp:Label id
=
"
Label1
"
runat
=
"
server
"
Width
=
"
128px
"
ForeColor
=
"
#000040
"
Font
-
Bold
=
"
True
"
Font
-
Size
=
"
Larger
"
>
图片列表页面
</
asp:Label
></
TD
>
</
TR
>
<
TR
>
<
TD style
=
"
HEIGHT: 155px
"
>
<
asp:DataGrid id
=
"
DG_ImageList
"
runat
=
"
server
"
AutoGenerateColumns
=
"
False
"
Width
=
"
672px
"
BorderColor
=
"
#CCCCCC
"
BorderStyle
=
"
None
"
BorderWidth
=
"
1px
"
BackColor
=
"
White
"
CellPadding
=
"
3
"
Height
=
"
144px
"
AllowSorting
=
"
True
"
AllowPaging
=
"
True
"
PageSize
=
"
5
"
>
<
FooterStyle ForeColor
=
"
#000066
"
BackColor
=
"
White
"
></
FooterStyle
>
<
SelectedItemStyle Font
-
Bold
=
"
True
"
ForeColor
=
"
White
"
BackColor
=
"
#669999
"
></
SelectedItemStyle
>
<
ItemStyle ForeColor
=
"
#000066
"
></
ItemStyle
>
<
HeaderStyle Font
-
Bold
=
"
True
"
ForeColor
=
"
White
"
BackColor
=
"
#006699
"
></
HeaderStyle
>
<
Columns
>
<
asp:BoundColumn DataField
=
"
imageID
"
HeaderText
=
"
图片ID
"
></
asp:BoundColumn
>
<
asp:BoundColumn DataField
=
"
imagepath
"
HeaderText
=
"
图片路径
"
></
asp:BoundColumn
>
<
asp:BoundColumn DataField
=
"
imageinfo
"
HeaderText
=
"
图片说明
"
></
asp:BoundColumn
>
<
asp:BoundColumn DataField
=
"
imagesize
"
SortExpression
=
"
imagesize
"
HeaderText
=
"
图片大小
"
></
asp:BoundColumn
>
<
asp:TemplateColumn
>
<
ItemTemplate
>
<
a href
=
'
ImageDisplay.aspx?imageID=<%# DataBinder.Eval(Container.DataItem,"imageID")%>
'
>
查看
</
a
>
</
ItemTemplate
>
</
asp:TemplateColumn
>
</
Columns
>
<
PagerStyle HorizontalAlign
=
"
Left
"
ForeColor
=
"
#000066
"
BackColor
=
"
White
"
Mode
=
"
NumericPages
"
></
PagerStyle
>
</
asp:DataGrid
></
TD
>
</
TR
>
<
TR
>
<
TD
><
FONT face
=
"
宋体
"
>
<
asp:HyperLink id
=
"
HyperLink2
"
runat
=
"
server
"
NavigateUrl
=
"
index.aspx
"
>
主页面
</
asp:HyperLink
>&
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<
asp:HyperLink id
=
"
HyperLink1
"
runat
=
"
server
"
NavigateUrl
=
"
ImageList.xml
"
>
查看XMl文件
</
asp:HyperLink
>
</
FONT
>
</
TD
>
</
TR
>
</
TABLE
>
</
form
>
</
body
>
</
HTML
>
4.ImageList.aspx.cs
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;
namespace
WebForm_Question2
{
/**/
///
<summary>
///
ImageList 的摘要说明。
///
</summary>
public
class
ImageList : System.Web.UI.Page
{
protected
System.Web.UI.WebControls.Label Label1;
protected
System.Web.UI.WebControls.HyperLink HyperLink2;
protected
System.Web.UI.WebControls.HyperLink HyperLink1;
protected
System.Web.UI.WebControls.DataGrid DG_ImageList;
private
void
Page_Load(
object
sender, System.EventArgs e)
{
//
在此处放置用户代码以初始化页面
if
(
!
IsPostBack)
{
ViewState[
"
SortField
"
]
=
"
imagesize
"
;
//
默认排序字段
BindDG();
}
}
Web 窗体设计器生成的代码
#region
Web 窗体设计器生成的代码
override
protected
void
OnInit(EventArgs e)
{
//
//
CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base
.OnInit(e);
}
/**/
///
<summary>
///
设计器支持所需的方法 - 不要使用代码编辑器修改
///
此方法的内容。
///
</summary>
private
void
InitializeComponent()
{
this
.DG_ImageList.PageIndexChanged
+=
new
System.Web.UI.WebControls.DataGridPageChangedEventHandler(
this
.DG_ImageList_PageIndexChanged);
this
.DG_ImageList.ItemDataBound
+=
new
System.Web.UI.WebControls.DataGridItemEventHandler(
this
.DG_ImageList_ItemDataBound);
this
.DG_ImageList.SortCommand
+=
new
System.Web.UI.WebControls.DataGridSortCommandEventHandler(
this
.DataGrid_Sort);
this
.Load
+=
new
System.EventHandler(
this
.Page_Load);
}
#endregion
将ImageList.xml文件绑定DataGrid中
#region
将ImageList.xml文件绑定DataGrid中
private
void
BindDG()
{
DataSet ds
=
new
DataSet();
ds.ReadXml(Server.MapPath(
"
ImageList.xml
"
));
DataView dv
=
(DataView)ds.Tables[
0
].DefaultView;
//
设置排序的表达式
dv.Sort
=
SortField;
if
(
!
SortAscending)
{
//
定义默认的排序表达式
dv.Sort
+=
"
DESC
"
;
}
this
.DG_ImageList.DataSource
=
ds.Tables[
0
];
this
.DG_ImageList.DataBind();
}
#endregion
排序事件处理程序
#region
排序事件处理程序
public
void
DataGrid_Sort(Object sender,DataGridSortCommandEventArgs e)
{
//
对DataGrid排序
this
.DG_ImageList.CurrentPageIndex
=
0
;
SortField
=
e.SortExpression;
BindDG();
//
重新绑定数据
}
string
SortField
{
get
{
object
obj
=
ViewState[
"
SortField
"
];
if
(obj
==
null
)
{
return
String.Empty;
}
return
(
string
)obj;
}
set
{
if
(value
==
SortField)
{
SortAscending
=
!
SortAscending;
}
ViewState[
"
SortField
"
]
=
value;
}
}
//
排序方式
bool
SortAscending
{
get
{
object
obj
=
ViewState[
"
SortAscending
"
];
if
(obj
==
null
)
{
return
true
;
}
return
(
bool
)obj;
}
set
{
ViewState[
"
SortAscending
"
]
=
value;
}
}
#endregion
DataGrid分页事件
#region
DataGrid分页事件
private
void
DG_ImageList_PageIndexChanged(
object
source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
{
this
.DG_ImageList.CurrentPageIndex
=
e.NewPageIndex;
BindDG();
}
#endregion
鼠标经过事件
#region
鼠标经过事件
private
void
DG_ImageList_ItemDataBound(
object
sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
if
((e.Item.ItemType
==
ListItemType.Item)
|
(e.Item.ItemType
==
ListItemType.AlternatingItem) )
{
e.Item.Attributes.Add(
"
onmouseover
"
,
"
this.style.backgroundColor='#E4EDF9'
"
);
e.Item.Attributes.Add(
"
onmouseout
"
,
"
this.style.backgroundColor='#ffffff'
"
);
}
}
#endregion
}
}
作者:
青羽
posted @
2006-09-18 08:51
青羽
阅读(
1893
) 评论(
1
)
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