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GridView如何更新批量数据和单条记录(downmoon)？

2007-12-14 13:44 357 查看

后台代码段

Members
#region
Members

protected
GridView GVList;

public

string
PreUrl
=
Agronet.Common.Framework.Util.Globals.MemberUserPath
+

"
Product
"

+

@"
/
"
;

protected
Agronet.Common.Framework.Util.Pager pager;

protected
TextBox txtSearchTxt;

protected
Button btnSearch;

protected
HyperLink cmdAdd;

protected
LinkButton cmdDel;

protected
LinkButton cmdRecommend;

protected
LinkButton cmdUnPublish;

protected
TextBox txtWords;

protected
DropDownList ddlType;

protected
Label TradeTypeID;

protected
Label NoResult;

private

int
_page
=

1
;

public

int
_sort
=

0
;

/**/
///

<summary>

///
关键字

///
downmoon 2007年12月12日

///

</summary>

private

string
_word

...
{

get

...
{

object
o
=
ViewState[
"
strWords
"
];

return
(o
==

null
)
?

""
: o.ToString();

}

set

...
{

ViewState[
"
strWords
"
]
=
value;

}

//
审核状态

public

short
CheckState

...
{

get

...
{

object
o
=
ViewState[
"
CheckState
"
];

return
SQLParser.ShortParse(o);

}

set

...
{ ViewState[
"
CheckState
"
]
=
value; }

}

#endregion

Events
#region
Events

protected

override

void
OnLoad(EventArgs e)

...
{

base
.OnLoad(e);

Check
#region
Check

CheckSiteUser();

#endregion

initPage
#region
initPage

_page
=
SQLParser.IntParse(Page.Request.QueryString[
"
page
"
]);

_word
=
SQLParser.StringParse(Page.Request.QueryString[
"
word
"
]);

CheckState
=
SQLParser.ShortParse(Page.Request.QueryString[
"
st
"
]);

if
(txtSearchTxt
!=

null
)

...
{

txtSearchTxt.Attributes.Add(
"
maxlength
"
,
"
20
"
);

txtSearchTxt.Text
=
_word;

}

if
(
this
.ddlType
!=

null
)

...
{

this
.ddlType.SelectedValue
=

this
.CheckState.ToString();

this
.ddlType.SelectedIndexChanged
+=

new
EventHandler(ddlType_SelectedIndexChanged);

}

if
(cmdAdd
!=

null
)
...
{ cmdAdd.NavigateUrl
=
PreUrl
+

"
Insert.aspx
"
; }

if
(cmdDel
!=

null
)
...
{ cmdDel.Click
+=

new
EventHandler(cmdDel_Click); }

if
(cmdRecommend
!=

null
)
...
{ cmdRecommend.Click
+=

new
EventHandler(cmdRecommend_Click); }

if
(cmdUnPublish
!=

null
)
...
{ cmdUnPublish.Click
+=

new
EventHandler(cmdUnPublish_Click); }

pager.PageIndex
=
_page;

pager.PageSize
=
Agronet.Common.Framework.Util.Globals.PageSize;

if
(GVList
!=

null
)

...
{

GVList.RowDataBound
+=

new
GridViewRowEventHandler(GVList_RowDataBound);

GVList.RowCommand
+=

new
GridViewCommandEventHandler(GVList_RowCommand);

GVList.RowUpdating
+=

new
GridViewUpdateEventHandler(GVList_RowUpdating);

}

if
(NoResult
!=

null
)
...
{ NoResult.Text
=
GetCurStateByID(CheckState)
+

"
列表
"
; }

if
(btnSearch
!=

null
)
...
{ btnSearch.Click
+=

new
EventHandler(btnSearch_Click); }

#endregion

BindList
#region
BindList

if
(
!
IsPostBack)

...
{

BindList();

}

pager.UrlFormat
=
PreUrl
+

"
?page={0}&sort=0&dvid=2&word=
"

+
_word
+

"
&st=
"

+
CheckState.ToString();

#endregion

}

Serarch
#region
Serarch

private

void
btnSearch_Click(
object
sender, EventArgs e)

...
{

string
strurl
=
PreUrl
+

"
?dvid=2&sort=0&st={0}&word={1}
"
;

this
.CheckState
=
SQLParser.ShortParse(
this
.ddlType.SelectedItem.Value);

strurl
=

string
.Format(strurl, CheckState.ToString(), txtSearchTxt.Text.Trim());

PageLocation(strurl);

}

#endregion

ddlType
#region
ddlType

private

void
ddlType_SelectedIndexChanged(
object
sender, EventArgs e)

...
{

if
(
this
.ddlType
!=

null

&&
ddlType.SelectedValue.Trim()
!=

""
)

...
{

this
.CheckState
=
SQLParser.ShortParse(
this
.ddlType.SelectedItem.Value);

string
strurl
=
PreUrl
+

"
?dvid=2&page=1&st=
"

+
CheckState.ToString()
+

"
&word=
"

+

this
.txtSearchTxt.Text.Trim(); ;

PageLocation(strurl);

}

#endregion

protected

void
cmdDel_Click(
object
sender, EventArgs e)

...
{

执行批量操作
#region
执行批量操作

UpdateMultiRecordsByWhere(pager.PageSize,
-
4
,
1
);

#endregion

}

private

void
cmdUnPublish_Click(
object
sender, EventArgs e)

...
{

执行批量操作
#region
执行批量操作

UpdateMultiRecordsByWhere(pager.PageSize,
-
2
,
1
);

#endregion

;

}

private

void
GVList_RowCommand(
object
sender, GridViewCommandEventArgs e)

...
{

执行批量操作
#region
执行批量操作

if
(e.CommandName
==

"
Update
"
)

...
{

try

...
{

int
days
=

0
;

if
(muser.ClientClass
>

0
)
...
{ days
=
Globals.ProductinfoUpdatePerDays; }

long
pid
=
SQLParser.LongParse(GVList.DataKeys[SQLParser.IntParse(e.CommandArgument)].Value);

//
GridView a = (GridView)sender;

if
(pid
>

0
)

...
{

int
retValue
=
Agronet.Product.Framework.Data.DataDTOProvider.ProducyUpdateModifyTime(pid, days, muser.LoginID);

switch
(retValue)

...
{

case

-
1
:

Debug(
"
产品更新失败，原因：产品未通过审核！
"
,
"
Error
"
);

break
;

case

0
:

Debug(
"
产品更新失败，原因：未知！
"
,
"
Error
"
);

break
;

case

1
:

Index
#region
Index

Debug(
"
产品更新成功！
"
,
"
Succeed
"
);

#endregion

break
;

case

2
:

Debug(
"
尊敬用户
"

+
user.LoginID
+

@"
您好，您选择的产品暂时还不能被更新,原因：单位时间内更新过与频繁，二十分钟之内不能连续更新！
"
,
"
Error
"
);

break
;

default
:

break
;

}

catch
(Exception ex)

...
{

return
;

}

#endregion

}

private

void
GVList_RowUpdating(
object
sender, GridViewUpdateEventArgs e)

...
{

//
BindList();

}

private

void
cmdRecommend_Click(
object
sender, EventArgs e)

...
{

执行批量操作
#region
执行批量操作

UpdateMultiRecordsByWhere(pager.PageSize,
1
,
2
);

#endregion

}

protected

void
GVList_RowDataBound(
object
sender, GridViewRowEventArgs e)

...
{

if
(e.Row.RowType
==
DataControlRowType.DataRow)

...
{

HyperLink cmdMod
=
(HyperLink)e.Row.FindControl(
"
cmdMod
"
);

if
(cmdMod
!=

null
)
...
{ cmdMod.NavigateUrl
=
PreUrl
+

"
Modify.aspx?dvid=2&PKID=
"

+
DataBinder.Eval(e.Row.DataItem,
"
P_ID
"
); }

LinkButton lbUpdate
=
(LinkButton)e.Row.FindControl(
"
cmdUpdate
"
);

if
(lbUpdate
!=

null
)
...
{ lbUpdate.CommandArgument
=
e.Row.RowIndex.ToString(); }

}

#endregion

Methods
#region
Methods

BindList
#region
BindList

private

void
BindList()

...
{

string
strWhere
=

string
.Empty;

strWhere
=

"
(LoginID='
"

+
muser.LoginID
+

"
')
"
;

Agronet.Product.Framework.Components.ProductCollection sc
=
Agronet.Product.Framework.Data.DataDTOProvider.GetProductReturnCollection(_word.Trim(), strWhere, pager.PageIndex, pager.PageSize, _sort, CheckState);

this
.GVList.DataSource
=
sc;

this
.GVList.DataBind();

if
(sc.MaxItems
>

0
)

...
{ pager.ItemCount
=
sc.MaxItems; }

else

...
{

pager.Visible
=

false
;

this
.NoResult.Text
=

"
无符合条件的记录!
"
;

}

Multiple Record Update Method
#region
Multiple Record Update Method

private

void
UpdateMultiRecordsByWhere(
int
mCount,
short
mState,
short
updateType)

...
{

Check
#region
Check

CheckSiteUser();

#endregion

执行批量操作
#region
执行批量操作

try

...
{

StringBuilder sb
=

new
StringBuilder();

string
strTemp
=

string
.Empty;

string
PKName
=

string
.Empty;

int
tempCount
=

0
;

if
(GVList
==

null

||
GVList.Rows.Count
==

0
)
...
{
return
; }

PKName
=
GVList.DataKeyNames[
0
].ToString();

sb.Append(
"
where
"
);

sb.Append(
"
LoginID= '
"
);

sb.Append(muser.LoginID);

sb.Append(
"
' AND
"
);

sb.Append(PKName);

sb.Append(
"
in (
"
);

for
(
int
i
=

0
; i
<
GVList.Rows.Count; i
++
)

...
{

CheckBox chk
=
(CheckBox)GVList.Rows[i].FindControl(
"
chkDelServer
"
);

if
(chk
!=

null

&&
chk.Checked)

...
{

sb.Append(GVList.DataKeys[i].Value.ToString());

sb.Append(
"
,
"
);

tempCount
++
;

}

if
(tempCount
==

0
)
return
;

if
(tempCount
>
mCount)
...
{ Debug(
"
超出批量操作的最大允许数量!
"
,
this
.ClientID,
true
);
return
; }

strTemp
=
sb.ToString();

if
(strTemp.EndsWith(
"
,
"
))
...
{ strTemp
=
strTemp.Remove(strTemp.Length
-

1
); }

strTemp
+=

"
)
"
;

if
(updateType
==

1
)

...
{

Agronet.Product.Framework.Data.DataDTOProvider.ProductUpdateStatusByWhere(strTemp, mState, muser.LoginID);

}

else

...
{

Agronet.Product.Framework.Data.DataDTOProvider.ProductUpdateRecommendStatusByWhere(strTemp, mState, muser.LoginID);

}

BindList();

}

catch
(Exception ex)

...
{

Debug(ex.Message,
this
.ClientID,
true
);

return
;

}

#endregion

}

#endregion

#endregion

前台html

<
script
language
="JavaScript"
>
...

<!--

function
CheckAll(val)

...
{

for
(
var
i
=
0
;i
<
document.forms[
0
].elements.length;i
++
)

...
{

var
e
=
document.forms[
0
].elements[i];

if
(e.Type
=
"
checkbox
"

&&
e.name
!=
"
_ctl2:_ctl0:radioSortDesc
"
)

...
{

e.checked
=
val;

}

//
-->

</
script
>

<
table
width
="95%"
border
="0"
cellpadding
="0"
cellspacing
="0"
align
="center"
>

<
tr
>

<
td
height
="25"
align
="right"
bgcolor
="#EFEFEF"
class
="tab_font_right"
>

<
strong
>
产品搜索
</
strong
>
：

<
asp:TextBox
ID
="txtSearchTxt"
runat
="server"

/>

<
asp:Button
ID
="btnSearch"
runat
="server"
Text
="搜索"
></
asp:Button
>

转到

<
asp:DropDownList
ID
="ddlType"
runat
="server"
CssClass
="maintext"
AutoPostBack
="True"
>

<
asp:ListItem
Value
="10000"
>
所有产品
</
asp:ListItem
>

<
asp:ListItem
Value
="2"
>
已推荐
</
asp:ListItem
>

<
asp:ListItem
Value
="1"
>
当前发布
</
asp:ListItem
>

<
asp:ListItem
Value
="0"
>
等待审核
</
asp:ListItem
>

<
asp:ListItem
Value
="-1"
>
未通过审核
</
asp:ListItem
>

<
asp:ListItem
Value
="-2"
>
未发布
</
asp:ListItem
>

</
asp:DropDownList
>

</
td
>

</
tr
>

</
table
>

<
table
width
="95%"
border
="0"
align
="center"
cellpadding
="0"
cellspacing
="1"
>

<
tr
>

<
td
>

<
asp:GridView
ID
="GVList"
runat
="server"
ShowFooter
="true"
AutoGenerateColumns
="False"

BorderStyle
="Solid"
BorderColor
="#ffffff"
GridLines
="Horizontal"
CellSpacing
="1"

Width
="100%"
HorizontalAlign
="NotSet"
BorderWidth
="0px"
EnableViewState
="true"

DataKeyNames
="P_ID"
>

<
HeaderStyle
CssClass
="InfoHeaderText"
ForeColor
="#000000"
HorizontalAlign
="center"

Height
="22px"

/>

<
AlternatingRowStyle
BackColor
="#f7f7f7"

/>

<
RowStyle
HorizontalAlign
="center"
Height
="20px"
BackColor
="#E3EAEB"

/>

<
SelectedRowStyle
BackColor
="#C5BBAF"
Font-Bold
="True"
ForeColor
="#333333"

/>

<
Columns
>

<
asp:TemplateField
>

<
HeaderStyle
Width
="60px"
BackColor
="#1C5E55"
ForeColor
="White"

/>

<
HeaderTemplate
>

编号
</
HeaderTemplate
>

<
ItemTemplate
>

<
asp:Label
ID
="PKID"
Text
='<%#
DataBinder.Eval(Container.DataItem,"P_ID")%
>
' runat="server" />

</
ItemTemplate
>

</
asp:TemplateField
>

<
asp:TemplateField
Visible
="False"
>

<
HeaderTemplate
>

<
asp:Label
ID
="Image_Head"
runat
="server"
Text
="产品图片"

/>

</
HeaderTemplate
>

<
HeaderStyle
Width
="120"

/>

<
ItemTemplate
>

<
asp:HyperLink
ID
="P_SmallImage"
runat
="server"

/>

</
ItemTemplate
>

</
asp:TemplateField
>

<
asp:TemplateField
>

<
HeaderTemplate
>

产品名称
</
HeaderTemplate
>

<
ItemStyle
HorizontalAlign
="left"

/>

<
HeaderStyle
HorizontalAlign
="Left"

/>

<
ItemTemplate
>

·
<
asp:Label
ID
="P_Name"
Text
='<%#
DataBinder.Eval(Container.DataItem,"P_Name")%
>
'

runat="Server" />
<
img
src
='<%#
"/Resource/images/Check"+DataBinder.Eval(Container, "DataItem.CurState")+".gif" %
>
' />
</
ItemTemplate
>

</
asp:TemplateField
>

<
asp:BoundField
DataField
="ModTime"
HeaderText
="修改时间"
DataFormatString
="{0:yyyy-MM-dd HH:mm}"

HtmlEncode
="false"

/>

<
asp:BoundField
DataField
="ModUser"
HeaderText
="修改者"

/>

<
asp:TemplateField
>

<
HeaderTemplate
>

状态
</
HeaderTemplate
>

<
ItemTemplate
>

<
asp:Label
ID
="CurState"
Text
='<%#
GetCurStateByID(DataBinder.Eval(Container.DataItem,"CurState"))%
>
'

runat="Server" />

</
ItemTemplate
>

</
asp:TemplateField
>

<
asp:TemplateField
>

<
HeaderStyle
Width
="60px"

/>

<
HeaderTemplate
>

编辑
</
HeaderTemplate
>

<
ItemTemplate
>

<
asp:HyperLink
ID
="cmdMod"
CssClass
="ElementNavigation"
Text
="编辑"
runat
="server"

/>

</
ItemTemplate
>

</
asp:TemplateField
>

<
asp:TemplateField
>

<
HeaderStyle
Width
="60px"

/>

<
HeaderTemplate
>

更新
</
HeaderTemplate
>

<
ItemTemplate
>

<
asp:LinkButton
ID
="cmdUpdate"
CommandName
="Update"
CssClass
="ElementNavigation"
Text
="快速更新"
runat
="server"
OnClientClick
="return confirm('您确认快速更新该记录吗?');"
/>

</
ItemTemplate
>

</
asp:TemplateField
>

<
asp:TemplateField
>

<
HeaderStyle
Width
="40px"

/>

<
HeaderTemplate
>

<
input
type
="checkbox"
name
="allbox"
value
="Check All"
onclick
="CheckAll(allbox.checked);"

/>

</
HeaderTemplate
>

<
ItemTemplate
>

<
asp:CheckBox
ID
="chkDelServer"
runat
="server"

/>

</
ItemTemplate
>

</
asp:TemplateField
>

</
Columns
>

</
asp:GridView
>

</
td
>

</
tr
>

<
tr
>

<
td
align
="right"
>

<
asp:HyperLink
ID
="cmdAdd"
ForeColor
="Red"
Text
="新增"
CssClass
="ElementNavigation"

runat
="server"

/>

<
asp:LinkButton
ID
="cmdRecommend"
runat
="server"
CssClass
="ElementNavigation"

Text
="推荐"
CommandName
="ReCommend"
CausesValidation
="false"
OnClientClick
="javascript:return confirm('确定推荐或(取消推荐)已选择的数据吗？')"
></
asp:LinkButton
>

<
asp:LinkButton
ID
="cmdUnPublish"
runat
="server"
CssClass
="ElementNavigation"

Text
="取消发布"
CommandName
="UnPublish"
CausesValidation
="false"
OnClientClick
="javascript:return confirm('确定取消发布已选择的数据吗？')"
></
asp:LinkButton
>

<
asp:LinkButton
ID
="cmdDel"
ForeColor
="Red"
Text
="删除"
CssClass
="ElementNavigation"

CausesValidation
="false"
runat
="server"
CommandName
="Delete"
OnClientClick
="javascript:return confirm('确定删除已选择的数据吗？')"

/>

</
td
>

</
tr
>

<
tr
>

<
td
>

<
Agronet:Pager
ID
="pager"
runat
="server"
CssClass
="Pager"
LinkFormatActive
='<a
href
="{0}"
class
="Current"
>
{1}
</
a
>
'

PrefixText="页码:" UseSpacer="False" />

</
td
>

</
tr
>

</
table
>

值处注意的是：

必须添加这个事件，即使它什么也不干

private

void
GVList_RowUpdating(
object
sender, GridViewUpdateEventArgs e)

...
{

//
BindList();

}

否则会提示“未处理的RowUpdating事件”

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