In ASP.NET, trying to find the assigned visibility value of a control that may be inside an invisible container -

-

i trying find out whether particular control on asp.net page has had it's "visible" property assign true or false. problem visible property crawl list of parents , if of them show invisible, queried control show invisible. need know control has been set to.

i did searching , found post how set/real value of visible property in asp.net offered following solution

public static bool localvisible(this control control){     var flags = typeof (control)         .getfield("flags", bindingflags.instance | bindingflags.nonpublic)         .getvalue(control);      return ! (bool) flags.gettype()         .getproperty("item", bindingflags.instance | bindingflags.nonpublic)         .getvalue(flags, new object[] {0x10}); }

but when tried it, returned "ambiguous match found" error on getproperty.

can point out i'm doing wrong, or show way of getting want?

i had same problem (two years later). answer wrote in topic refer to:

in case tries jørn schou-rode's code working in vb.net, here code works me. when translate code in vb, "ambiguous match found" exception, because there 3 flavors of flags "item" property.

<extension()> public function getlocalvisible(ctl control) boolean     dim flags object = gettype(control).getfield("flags", bindingflags.instance or bindingflags.nonpublic).getvalue(ctl)     dim infos propertyinfo() = flags.gettype().getproperties(bindingflags.instance or bindingflags.nonpublic)     each info propertyinfo in infos         if info.name = "item" andalso info.propertytype.name = "boolean"             return not cbool(info.getvalue(flags, new object() {&h10}))         end if     next     return ctl.visible end function

Comments

Post a Comment

Popular posts from this blog

c# - SVN Error : "svnadmin: E205000: Too many arguments" -

-
i trying reposotries using c# code process svncommand = null; var psi = new processstartinfo("svnadmin"); psi.redirectstandardoutput = true; psi.redirectstandarderror = true; psi.useshellexecute = false; psi.arguments= @"dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump"; using (svncommand = process.start(psi)) { var myoutput = svncommand.standardoutput; var myerror = svncommand.standarderror; debug.write("output :" + environment.newline + environment.newline + myoutput.readtoend() + environment.newline + "error :" + environment.newline + environment.newline + myerror.readtoend()); svncommand.close(); } when use dump command commandline svnadmin dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump it works fine when try ...
Read more

c# - Copy ObservableCollection to another ObservableCollection -

-
how copy observablecollection item observablecollection without reference of first collection? here observablecollection item value changes affecting both collections. code private observablecollection<ratemodel> _allmetalrate = new observablecollection<ratemodel>(); private observablecollection<ratemodel> _metalrateondate = new observablecollection<ratemodel>(); public observablecollection<ratemodel> allmetalrate { { return this._allmetalrate; } set { this._allmetalrate = value; notifypropertychanged("metalrate"); } } public observablecollection<ratemodel> metalrateondate { { return this._metalrateondate; } set { this._metalrateondate = value; notifypropertychanged("metalrateondate"); } } foreach (var item in metalrateondate) allmetalrate.add(item); what causing , how can solve it? you need clone object referenced item before it's a...
Read more

All overlapping substrings matching a java regex -

-
is there api method returns (possibly overlapping) substrings match regular expression? for example, have text string: string t = 04/31 412-555-1235; , , have pattern: pattern p = new pattern("\\d\\d+"); matches strings of 2 or more characters. the matches are: 04, 31, 412, 555, 1235. how overlapping matches? i want code return: 04, 31, 41, 412, 12, 55, 555, 55, 12, 123, 1235, 23, 235, 35. theoretically should possible -- there obvious o(n^2) algorithm enumerates , checks substrings against pattern. edit rather enumerating substrings, safer use region(int start, int end) method in matcher . checking pattern against separate, extracted substring might change result of match (e.g. if there non-capturing group or word boundary check @ start/end of pattern). edit 2 actually, it's unclear whether region() expect zero-width matches. specification vague, , experiments yield disappointing results. for example: string line = "xx90xx"; strin...
Read more