📄 cwp4069.htm
字号:
<!-- saved from url=(0007)http:// -->
<HTML><HEAD><META http-equiv="Content-Type" content="text/html; charset=UTF-8"><TITLE>Perst.PersistentString</TITLE><LINK REL=STYLESHEET HREF="../CommentReport.css" TYPE="text/css"></HEAD><BODY topmargin=0 rightmargin=0 leftmargin=0 style="background-image: url(../titletile.jpg); background-repeat:repeat-x; background-position: 0 0;" ><DIV CLASS="PageHeading">Perst.PersistentString Class</DIV><DIV CLASS="Description">
Class encapsulating native .Net string. System.String is not persistent object
so it can not be stored in Perst as independent persistent object.
But sometimes it is needed. This class sole this problem providing implcit conversion
operator from System.String to PerisstentString.
Also PersistentString class is mutable, allowing to change it's values.
<P></DIV><IMG src="../GradLeft.jpg" width=7 height=378 alt="" border="0" style="position:absolute; left:10; top:18;z-Index:2"><IMG src="../GradTop.jpg" width=352 height=7 alt="" border="0" align="top" style="position:absolute; left:10; top:18; z-index:1"><DIV CLASS="Remarks"><SPAN CLASS="RemarkHdrX">Access: </SPAN>Public</DIV><DIV CLASS="Remarks"><SPAN CLASS="RemarkHdrX">Base Classes: </SPAN>PersistentResource</DIV><TABLE CLASS="InfoTable" cellpadding=0 cellspacing=0><TR height=20><TD width=20> </TD><TD valign=top align=left width=9 bgcolor="#cccc66"><IMG SRC="../graycorner.jpg" align=top></TD><TD CLASS="TableLightLabel" WIDTH=206>Members</TD><TD CLASS="TableLightLabel" >Description</TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP4070.HTM" TARGET="CNTFRAME">PersistentString</A></TD><TD CLASS="TableLightDesc">
Consutrctor of perisstent string
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP4071.HTM" TARGET="CNTFRAME">ToString</A></TD><TD CLASS="TableLightDesc">
Get .Net string
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP4072.HTM" TARGET="CNTFRAME">Append</A></TD><TD CLASS="TableLightDesc">
Append string to the current string value of PersistentString
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP4073.HTM" TARGET="CNTFRAME">Set</A></TD><TD CLASS="TableLightDesc">
Assign new string value to the PersistentString
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP4074.HTM" TARGET="CNTFRAME">Get</A></TD><TD CLASS="TableLightDesc">
Get current string value
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP4075.HTM" TARGET="CNTFRAME">str</A></TD><TD CLASS="TableLightDesc"> </TD><TD width=20> </TD></TR></TABLE></BODY></HTML>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -