runat=server
2024-07-21 02:16:54
供稿：網(wǎng)友
背景：
當(dāng)我們在窗體上添加web control例如label時，vs.net會自動添加runat=server把它當(dāng)成服務(wù)器控件，但是當(dāng)我們添加自定義的控件時，我們就無法自動得到runat=server我們必須每個空間都重復(fù)添加runat=server。
我們現(xiàn)在要做的就是做一個宏在vs.net中，它可以自動添加runat=server在我們指定的控件上，現(xiàn)在已經(jīng)存在的runat=server他會忽略不計，不會重復(fù)添加。
'this macro checks the specified elements if they have runat=server in
'them and if not then automatically adds runat=server in them
sub addrunatserver()
'create an undo context object so all the changes can be
'undone by ctrl+z
dim oundo as undocontext = dte.undocontext
oundo.open("comment line")
'supress the user interface. this will make it run faster
'and make all the changes appear once
dte.suppressui = true
try
'make a call to updatedocument()
updatedocument("<asp:")
updatedocument("<form")
updatedocument("<script")
updatedocument("<body")
'finally close the undo
oundo.close()
catch oexception as system.exception
dim lcerrmsg as string
lcerrmsg = "an error occured while running this program." _
& " please make sure that you are specifying the" _
& " correct parameters."
msgbox(lcerrmsg)
'undo the changes made to the document
oundo.setaborted()
dte.suppressui = false
finally
'rest the supress ui
dte.suppressui = false
end try
end sub
'this method is used internally to do the actual work for adding
'runat=server for a specified element type
private sub updatedocument(byval tcstringtosearch as string)
'get a reference to the currently open document
dim odoc as textdocument
odoc = dte.activedocument.object("textdocument")
'create editpoints for starting and ending positions of the doc
dim lnstartpos as editpoint = odoc.startpoint.createeditpoint
dim lnendpos as editpoint = odoc.endpoint.createeditpoint
'this is the string that we will search and a placeholder string
dim lcsearchstr as string = tcstringtosearch
dim lcstring as string
'define the private variables used in this process
dim lnstrpos as integer = 0
dim lnrunatpos as integer = 0
dim lnclosingpos as integer = 0
dim lnemptyspot as integer = 0
do while true
'get the string and remove all the carriage returns as they
'are ignored by the editpoint object
lcstring = lcase(lnstartpos.gettext(lnendpos))
lcstring = replace(lcstring, chr(13), "")
'get the first position of item we are looking for
lnstrpos = instr(lcstring, lcsearchstr)
if lnstrpos = 0 then
'if we do not find the item, exit
exit do
else
'we found the item that we were looking for
'shorten the string starting from the new position
lcstring = lcstring.remove(0, lnstrpos _
+ len(lcsearchstr))
'now move the editpoint to that position as well
lnstartpos.charright(lnstrpos + len(lcsearchstr))
'now we have the subsized string, let us check for the
'first occurance of > is more than the runat
lnclosingpos = instr(lcstring, ">")
lnrunatpos = instr(lcstring, "runat")
'the closing tag's position always has to be more
' than the runat's position
if lnrunatpos = 0 or lnrunatpos > lnclosingpos then
'at this point we found that runat=server is
' missing in this element/object
'locate the first blank spot to make the insertion.
lnemptyspot = instr(lcstring, " ")
'make sure that the blank spot is within the
'boundries
if lnemptyspot > lnclosingpos then
'special handling required
'in this case we want to place just before
' the closing position i.e. ">"
'however, it is possible that the closing is
' done using />
if lcstring.substring(lnclosingpos - 2, 1) = _
"/" then
lnstartpos.charright(lnclosingpos - 2)
lnstartpos.insert(" ")
else
lnstartpos.charright(lnclosingpos - 1)
lnstartpos.insert(" ")
end if
else
lnstartpos.charright(lnemptyspot)
end if
'once the blank spot is determined and the
' editpoint is positioned, make the insertion
lnstartpos.insert("runat=server ")
end if
end if
loop
end sub
