C#.NET Js操作类
using
System.Text;
using
System.Web;
using
System.Web.UI.HtmlControls;
namespace
Pub.Class
{
///
<summary>
///
Js操作类
///
</summary>
public
class
Js
{
#region
Run
///
<summary>
///
运行JS代码
///
</summary>
///
<param name="Page">
指定Page
</param>
///
<param name="strCode">
要注册的代码
</param>
///
<param name="isTop">
是否在头部/否则在尾部
</param>
public
static
void
Run(System.Web.UI.Page Page,
string
strCode,
bool
isTop)
{
StringBuilder sb
=
new
StringBuilder();
sb.Append(
"
<script language=\
"
javascript\
"
>\n
"
);
sb.Append(strCode.Trim());
sb.Append(
"
\n</script>\n
"
);
if
(isTop) Page.RegisterClientScriptBlock(
"
RunTopJs
"
, sb.ToString());
else
Page.RegisterStartupScript(
"
RunBottomJs
"
, sb.ToString());
}
///
<summary>
///
运行JS代码
///
</summary>
///
<param name="Page">
指定Page
</param>
///
<param name="strCode">
要注册的代码
</param>
///
<param name="isTop">
是否在头部/否则在尾部
</param>
///
<param name="IDStr">
Key
</param>
public
static
void
Run(System.Web.UI.Page Page,
string
strCode,
bool
isTop,
string
IDStr)
{
StringBuilder sb
=
new
StringBuilder();
sb.Append(
"
<script language=\
"
javascript\
"
>\n
"
);
sb.Append(strCode.Trim());
sb.Append(
"
\n</script>\n
"
);
if
(isTop) Page.RegisterClientScriptBlock(IDStr, sb.ToString());
else
Page.RegisterStartupScript(IDStr, sb.ToString());
}
///
<summary>
///
清空指定注册的JS代码
///
</summary>
///
<param name="Page">
指定Page
</param>
///
<param name="isTop">
是否在头部/否则在尾部
</param>
///
<param name="IDStr">
Key
</param>
public
static
void
Run(System.Web.UI.Page Page,
bool
isTop,
string
IDStr)
{
if
(isTop) Page.RegisterClientScriptBlock(IDStr,
""
);
else
Page.RegisterStartupScript(IDStr,
""
);
}
#endregion
#region
Alert
///
<summary>
///
提示信息
///
</summary>
///
<param name="msg">
消息
</param>
public
static
void
Alert(
string
msg)
{
StringBuilder sb
=
new
StringBuilder();
sb.Append(
"
<script language=\
"
javascript\
"
> \n
"
);
sb.Append(
"
alert(\
""
+ msg.Trim() +
"
\
"
); \n
"
);
sb.Append(
"
</script>\n
"
);
HttpContext.Current.Response.Write(sb.ToString());
}
///
<summary>
///
提示信息
///
</summary>
///
<param name="Page">
指定页
</param>
///
<param name="msg">
消息
</param>
public
static
void
Alert(System.Web.UI.Page Page,
string
msg)
{
StringBuilder sb
=
new
StringBuilder();
sb.Append(
"
<script language=\
"
javascript\
"
> \n
"
);
sb.Append(
"
alert(\
""
+ msg.Trim() +
"
\
"
); \n
"
);
sb.Append(
"
</script>\n
"
);
Page.RegisterClientScriptBlock(
"
AlertJs
"
, sb.ToString());
}
///
<summary>
///
提示信息
///
</summary>
///
<param name="Page">
指定页
</param>
///
<param name="msg">
消息
</param>
///
<param name="isTop">
是否在头部/否则在尾部
</param>
public
static
void
Alert(System.Web.UI.Page Page,
string
msg,
bool
isTop)
{
StringBuilder sb
=
new
StringBuilder();
sb.Append(
"
<script language=\
"
javascript\
"
> \n
"
);
sb.Append(
"
alert(\
""
+ msg.Trim() +
"
\
"
); \n
"
);
sb.Append(
"
</script>\n
"
);
if
(isTop) Page.RegisterClientScriptBlock(
"
AlertTopJs
"
, sb.ToString());
else
Page.RegisterStartupScript(
"
AlertBottomJs
"
, sb.ToString());
}
#endregion
#region
Import/loadCss/AddAttr/chkFormData
///
<summary>
///
注册一个处部JS文件/或CSS文件
///
</summary>
///
<param name="Page">
指定页
</param>
///
<param name="filePath">
文件
</param>
///
<param name="isTop">
是否在头部/否则在尾部
</param>
public
static
void
Import(System.Web.UI.Page Page,
string
filePath,
bool
isTop)
{
StringBuilder sb
=
new
StringBuilder();
if
(filePath.ToLower().Substring(filePath.Length
-
3
,
3
)
==
"
.js
"
) {
sb.Append(
"
<script language=\
"
JavaScript\
"
src=\
""
+ filePath +
"
\
"
type=\
"
text
/
javascript\
"
></script>\n
"
);
if
(isTop) Page.RegisterClientScriptBlock(
"
TopJs
"
, sb.ToString());
else
Page.RegisterStartupScript(
"
BottomJs
"
, sb.ToString());
}
if
(filePath.ToLower().Substring(filePath.Length
-
4
,
4
)
==
"
.css
"
) {
LoadCss(Page, filePath);
}
}
///
<summary>
///
注册一个处部CSS文件
///
</summary>
///
<param name="page">
Page
</param>
///
<param name="cssFile">
CSS文件
</param>
public
static
void
JsLoadCss(System.Web.UI.Page page,
string
cssFile)
{
Run(page,
"
setStyle(\
""
+ cssFile +
"
\
"
);\n
"
,
true
);
}
///
<summary>
///
注册一个处部CSS文件
///
</summary>
///
<param name="placeHolder">
PlaceHolder组件
</param>
///
<param name="cssFile">
CSS文件
</param>
public
static
void
LoadCss(System.Web.UI.WebControls.PlaceHolder placeHolder,
string
cssFile)
{
HtmlGenericControl objLink
=
new
HtmlGenericControl(
"
LINK
"
);
objLink.Attributes[
"
rel
"
]
=
"
stylesheet
"
;
objLink.Attributes[
"
type
"
]
=
"
text/css
"
;
objLink.Attributes[
"
href
"
]
=
cssFile;
placeHolder.Controls.Add(objLink);
//
<asp:placeholder id="MyCSS" runat="server"></asp:placeholder>
}
///
<summary>
///
注册一个处部CSS文件
///
</summary>
///
<param name="page">
Page
</param>
///
<param name="cssFile">
CSS文件
</param>
public
static
void
LoadCss(System.Web.UI.Page page,
string
cssFile)
{
HtmlLink myHtmlLink
=
new
HtmlLink();
myHtmlLink.Href
=
cssFile;
Js.AddAttr(myHtmlLink,
"
rel
"
,
"
stylesheet
"
);
Js.AddAttr(myHtmlLink,
"
type
"
,
"
text/css
"
);
page.Header.Controls.Add(myHtmlLink);
}
///
<summary>
///
添加属性
///
</summary>
///
<param name="Control">
WebControl
</param>
///
<param name="eventStr">
名称
</param>
///
<param name="MsgStr">
内容
</param>
public
static
void
AddAttr(System.Web.UI.WebControls.WebControl Control,
string
eventStr,
string
MsgStr)
{
Control.Attributes.Add(eventStr, MsgStr);
}
///
<summary>
///
添加属性
///
</summary>
///
<param name="Control">
HtmlGenericControl
</param>
///
<param name="eventStr">
名称
</param>
///
<param name="MsgStr">
内容
</param>
public
static
void
AddAttr(System.Web.UI.HtmlControls.HtmlGenericControl Control,
string
eventStr,
string
MsgStr)
{
Control.Attributes.Add(eventStr, MsgStr);
}
///
<summary>
///
添加属性
///
</summary>
///
<param name="Control">
HtmlGenericControl
</param>
///
<param name="eventStr">
名称
</param>
///
<param name="MsgStr">
内容
</param>
public
static
void
AddAttr(System.Web.UI.HtmlControls.HtmlControl Control,
string
eventStr,
string
MsgStr)
{
Control.Attributes.Add(eventStr, MsgStr);
}
///
<summary>
///
验证数据完整性
///
</summary>
///
<param name="page">
Page
</param>
///
<param name="dataValue">
内容
</param>
///
<param name="divObjStr">
div对像 如果为空时以alert方法显示
</param>
///
<param name="minLength">
最小长度
</param>
///
<param name="maxLength">
最大长度
</param>
///
<param name="titleStr">
标题
</param>
///
<param name="isNVarchar">
是否Nvarchar类型
</param>
///
<returns>
真/假
</returns>
///
<example>
///
<code>
///
private bool doSave()
///
{
///
if (!Cmn.Js.ChkFormData(this, "", "", 1, 20, "姓名", false)) return false;
///
if (!Cmn.Js.ChkFormData(this, "熊", "", 4, 20, "姓名", false)) return false;
///
if (!Cmn.Js.ChkFormData(this, "熊华春123456789123451", "", 4, 20, "姓名", false)) return false;
///
return true;
///
}
///
if (doSave()) Cmn.Js.Alert(this,"成功");
///
</code>
///
</example>
public
static
bool
ChkFormData(System.Web.UI.Page page,
string
dataValue,
string
divObjStr,
int
minLength,
int
maxLength,
string
titleStr,
bool
isNVarchar)
{
int
txtObjLength
=
(isNVarchar)
?
dataValue.Length : dataValue.CnLength();
StringBuilder sb
=
new
StringBuilder();
bool
_result
=
true
;
if
(txtObjLength
==
0
&&
minLength
!=
0
) {
if
(divObjStr
!=
""
) {
sb.Append(
"
document.getElementById(\
""
+ divObjStr +
"
\
"
).innerHTML = \
"
<
div
class
=
"
ErrorMsg
"
>
"
+ titleStr +
"
不能为空！
</
div
>
\
"
;
"
);
}
else
{
sb.Append(
"
alert('
"
+
titleStr
+
"
不能为空！');
"
);
}
_result
=
false
;
}
else
if
(txtObjLength
<
minLength){
if
(divObjStr
!=
""
) {
sb.Append(
"
document.getElementById(\
""
+ divObjStr +
"
\
"
).innerHTML = \
"
<
div
class
=
"
ErrorMsg
"
>
"
+ titleStr +
"
不能小于
"
+ minLength +
"
个字符！
</
div
>
\
"
;
"
);
}
else
{
sb.Append(
"
alert('
"
+
titleStr
+
"
不能小于
"
+
minLength
+
"
个字符！');
"
);
}
_result
=
false
;
}
else
if
(txtObjLength
>
maxLength){
if
(divObjStr
!=
""
) {
sb.Append(
"
document.getElementById(\
""
+ divObjStr +
"
\
"
).innerHTML = \
"
<
div
class
=
"
ErrorMsg
"
>
"
+ titleStr +
"
不能大于
"
+ maxLength +
"
个字符！
</
div
>
\
"
;
"
);
}
else
{
sb.Append(
"
alert('
"
+
titleStr
+
"
不能大于
"
+
maxLength
+
"
个字符！');
"
);
}
_result
=
false
;
}
else
{
if
(divObjStr
!=
""
) { sb.Append(
"
document.getElementById(\
""
+ divObjStr +
"
\
"
).innerHTML = \
"
\
"
);
"
); }
_result
=
true
;
}
Js.Run(page, sb.ToString(),
false
, titleStr);
return
_result ;
}
#endregion
}
}