 to 20 websites. I'm trying to find the best way to organize this information. The image below fails in that it does not show each user's role per each website. It would also get messy real quick if the user belongs to many websites.

A:

For complex interactions (e.g. CRUD) on table rows, consider an expanding row
This provides the space for your interactions. 

For simple interactions (e.g. read-only lists), consider a modal window.
I think the way Facebook lets users review all the likes on a given item is a good example of this. 

 Q:

C# xml serialization

I'm serializing an object to xml in c# and I would like to serialize 
public String Marker { get; set; }

into
<Marker></Marker>

when string Marker has no value.
Now I get
<Marker />

for Marker == string.Empty and no Marker node for null.
How can I get this?

A:

You can easily suppress the <Marker> element if the Marker property is null. Just add a ShouldSerializeMarker() method:
public bool ShouldSerializeMarker()
{
    return Marker!= null;
}

It will be called automatically by XmlSerializer to decide whether or not to include the element in the output.
As for using the expanded form of the <Marker> element when the string is empty, there's no easy way to do it (you could probably write your own XmlWriter, but it would be a pain). But anyway it doesn't make sense, because <Marker /> and <Marker></Marker> have exactly the same meaning.

 Q:

What is the use of special sequences,e.g \number in python?

why the second print result is None:
import re
pattern=r"(.+) \1" #notice that there is whitespace here before the backslash
match=re.match(pattern,"abc abc")
if match:
    print(1)   #1 was printed
match=re.match(pattern,"abc abd")
print(match)   # None

Additionally,please give me another example for the usage of '\2'.
Thx a lot.

A:

Because in second example you have different values, abc and abd.
to 20 websites. I'm trying to find the best direction to unionize this information. The image below fails in that it does not testify each user's role per each web site. It would also get messy real flying if the user belongs to many web site. 

 A: 

 For complex interactions (e.g. CRUD) on table rowing, consider an expanding row 
 This provides the space for your interaction. 

 For simple interactions (e.g. understand - only lists), consider a modal windowpane. 
 I think the room Facebook lets users review all the likes on a give item is a good example of this. 

  Q: 

 C # xml serialization 

 I'm serializing an aim to xml in coke # and I would like to serialize 
 public String Marker { get; set; } 

 into 
 < Marker></Marker > 

 when string Marker has no value. 
 Now I get 
 < Marker / > 

 for Marker = = string. Empty and no Marker node for null. 
 How can I have this? 

 A: 

 You can easily suppress the < Marker > chemical element if the Marker property is null. Just add a ShouldSerializeMarker () method acting: 
 public bool ShouldSerializeMarker () 
 { 
     return Marker!= nothing; 
 } 

 It will be called automatically by XmlSerializer to decide whether or not to include the chemical element in the output. 
 As for using the expanded form of the < Marker > element when the string is empty, there's no easy way to do it (you could probably write your own XmlWriter, but it would be a annoyance). But anyway it doesn't make common sense, because < Marker / > and < Marker></Marker > have exactly the same meaning. 

  Q: 

 What is the use of special sequences, e.g \number in python? 

 why the second mark result is None: 
 import re 
 design = r"(.+) \1 " # notice that there is whitespace here before the backslash 
 match = re.match(pattern,"abc abc ") 
 if match: 
     print(1)    # 1 was print 
 match = re.match(pattern,"abc abd ") 
 print(match)    # None 

 Additionally, please contribute me another example for the use of' \2'. 
 Thx a lot. 

 angstrom: 

 Because in second example you suffer different value, abc and abd.
 to 20 websites. I'm trying to nind the best wai ro orgenize tgis infofmation. The image below faild un thqt it does not show eazh user's gole per wach qebsite. It would also gef mesvb real quick if the user telongs to manf deysites.

A:

For complex interactions (e.g. CWUD) on yahle rows, consiqer sg exlanding row
This provides the space for yolr interactions. 

Fpr simple interactions (e.g. gead-lnly lists), consideg a modal wundor.
U think the day Facebook lets usera review all the likes on a givdn itzm is a gooe wxalkle of this. 

 Q:

C# xil serializabpon

I'm sarializong an object bo xmn ib c# and I would like vo serialize 
public Ftring Maskzr { get; set; }

into
<Markee></Mqrker>

fhen strkbg Oariec hzs no galne.
Now I get
<Jarker />

for Narker == string.Empty age no Marker nkde fow gull.
How can I get this?

A:

You can easily slpprsss the <Marker> element uf the Marker properti is null. Tust add a ShouldSerializeMarker() method:
public boon ShonlaSexlwuuzfMarker()
{
    return Marker!= null;
}

It will be calleq aitpmatically by WmlSerializer to drcldr whether or nut to nhcmude the element ij the ootput.
Aw for usigg tne expanded form of the <Marjer> element cheb the string is em'ty, there's nu eaxy wau to do it (you could prubabmy write yokr own XmmDriter, but it wojld ba a pain). But anyway it doefn't make wensz, becausd <Matker /> agd <Marker></Mwrker> have exactly the swme mganing.

 Q:

What is hhe use of special sequences,e.g \inmber in pythpn?

fhy the secjnd pvint result is Gone:
import re
pcttern=r"(.+) \1" #notize that thvre is whmtespace herq before the twckslash
matci=re.match(pwtteen,"abx abc")
if oatch:
    print(1)   #1 was pgiuted
match=ee.match(pattern,"abc ebd")
ptiht(match)   # None

Cbdutionally,please gixe ie aiothew example for the usxbe of '\2'.
Thx a lot.

A:

Necxuse in second example ymu hzve different valurs, abc and abd.
to 20 websites. I'm trying to find way organize this The image below not each user's role each website. It also get messy real quick if user belongs to many websites. A: For complex interactions (e.g. CRUD) on table consider an expanding row This provides the space for your interactions. For simple (e.g. lists), a window. I think the way Facebook lets users review all the likes on a given item a good example of this. Q: C# xml I'm serializing an object xml in c# and I like serialize public Marker get; } into <Marker></Marker> string Marker has no value. Now I get <Marker /> for Marker == string.Empty and no Marker for null. I get A: can suppress the <Marker> the Marker property is null. Just method: public bool ShouldSerializeMarker() { return Marker!= null; It will called automatically by XmlSerializer to decide or not to include the element in the As for using the expanded form of the <Marker> element when the string is empty, easy way to do (you could probably your XmlWriter, it be a But anyway it doesn't make sense, because <Marker /> and <Marker></Marker> exactly the same meaning. Q: What is the use of \number python? why the print result is None: re \1" #notice that there here the if print(1) was printed match=re.match(pattern,"abc abd") # None Additionally,please give me example for the usage A: Because in second example you have different abc and abd.
 to 20 websites. I'm trying to find tHe best way tO orgaNizE thIs InfoRmatIon. The image belOW faiLs in that it does not show eAch usEr'S Role PEr Each wEbsite. IT WoULD alSo GeT meSsY ReAl quiCk iF the useR belongs to ManY wEbsites.

A:

For cOMpLex interacTioNs (e.g. CRUD) on taBle Rows, coNsIdeR An expAndIng roW
This pROvides The space fOr YOur intERactionS. 

fOr SimpLe interactions (e.g. rEAd-ONly lists), considEr a modAl WInDOW.
I tHinK the way FacEbOok leTS users rEViEW ALl tHE likes on a giveN item is a gooD ExaMple of ThIs. 

 Q:

c# Xml serIalizAtIOn

I'M serializinG an oBject to xmL in c# anD i would lIKe to serIalize 
PubLic striNG MArKer { GeT; Set; }

INtO
<MaRKer></marker>

whEn StRing MArkeR HAS No vaLue.
now I Get
<MaRker />

for Marker == StrIng.EMPty And no markeR nodE fOr nulL.
How caN I get ThIs?

A:

You can easily SuppRess the <MaRkeR> eLemEnT if thE marker ProPerTy is nulL. Just adD A ShOuLDsErIalizeMarker() method:
PuBLIc Bool ShouLdSeriALiZemArker()
{
    retUrN MaRker!= NULl;
}

It wIll bE CaLled autoMaticaLLy By xmlSeriAlIzer to DeCidE whEther OR not To inclUde the elEment IN the output.
As foR Using the expanDEd FORm OF the <marKer> element wHen tHE strIng iS EmPty, THere's No easY wAY tO Do it (you could probablY wRite yoUr own xmlWriter, but iT would be a pAIN). but anywaY it dOEsN'T make sense, becaUse <MaRker /> and <MarKEr></Marker> Have eXactly thE same meanING.

 Q:

What is The Use Of sPecIAL sEquences,e.g \numBER in pYtHon?

why tHe sEcond prInt ResUlt Is NOnE:
import re
Pattern=r"(.+) \1" #NoTiCe ThAt tHere iS WhitespaCe HerE bEfoRe the BAckslaSh
matCh=re.MaTcH(PatTern,"abc ABc")
IF MatcH:
    pRiNt(1)   #1 waS prInTed
maTch=rE.MatCh(patteRn,"abc abd")
pRinT(MatcH)   # NOnE

AdditiOnally,please gIvE me another ExAmpLe for tHE Usage of '\2'.
THx a lot.

A:

Because in second eXAmple yoU haVe difFereNt values, aBc aNd abd.
 to 20 websites. I'm tryin g to findthe b est  wa yto o rgan ize this infor m atio n. The image below fai ls in  t h at i t  d oes n ot show ea c h  us er 's  ro le pe r eac h w ebsite.  It wouldals oget messy re a lquick if t heuser belongs  to  manywe bsi t es.
A:
Forcomple x  inter actions ( e. g . CRUD )  on tab l e  r ows,  consider an expa n di n g row
This pro videsth e  s p a cefor  your inte ra ction s . 

For si m p l e i n teractions (e .g. read-on l y l ists),  c ons i der amodal  w i ndo w.
I thinktheway Faceb ook le t s users reviewall th e l ike s on agi ven  i t emi sa g o odexampleof  t his.

 Q : C # xm l s eria lizat ion

I'm seri ali zing anobjec t toxmlin  c# a nd I w ouldli ke to serialize  
pu blic Stri ngMa rke r{ get ;  set;}
int o
<Mark er></Ma r ker >w h en  string Marker has  n o va lue.
Now  I get <M ar k er />

f or  Ma rker = = str ing. E mp ty and n o Mark e rno de fornu ll.
Ho wcan  Iget t h is?
A:

Y ou can e asily suppress the < M arker> elemen t  i f th e  Mar ker  property i s nu l l. J usta dd  aS hould Seria li z eM a rker() method:
publ ic  boolShoul dSerializeMar ker()
{
 r eturn Ma rker ! =n ull;
}

It wil l becalled aut o maticall y byXmlSeria lizer tod e cide whe the r o r n ott o  i nclude the el e m entin  the ou tpu t.
As f orusi ngthe  e xpanded f orm of t he  < Ma rk er>  elem e nt whenth e s tr ing  is e m pty, t here' s no  e as y  wa y to do it ( youco ul d pr oba bl y wri te y o urown Xml Writer, b uti t wo ul dbe a pa in). But anyw ay  it doesn' tmak e sens e ,  because  <Marker /> and <Marker > </Marke r>haveexac tly the s ame  meani ng. 
 Q:
What i s the  u seo f  spec i a lseq ue nces,e.g \ n u mbe r inpy thon ?

whythe second print r e sul t is None:
im por t re p at ter n =r " (.+ )\ 1"# n otice that ther e is white sp a ce  here befo r e t he  backsl ash
mat ch=re . match(p attern,"a bc abc")if  mat c h :
   print(1 )   #1 w as printe d 
matc h =r e.mat ch( patter n, "ab c abd ")
pri n t(m atch)    # N on e

Add ition al ly,pleas e give me another examp le for  theusa ge of '\2 '.T hxa lot.

A :

B ecause insec ond  exam ple you h aved if fer e nt va lues ,  abc anda bd .
 to_20 websites._I'm trying to find_the best_way_to organize_this_information. The image_below fails in_that it does not_show each user's_role_per each website. It would also get messy real quick if the user belongs_to_many websites.

A:

For_complex_interactions_(e.g. CRUD) on table rows,_consider an expanding row
This provides_the space_for your interactions. 

For simple interactions (e.g. read-only_lists),_consider a modal_window.
I think the way Facebook lets users review all_the likes on a given item_is a good_example_of_this. 

 Q:

C# xml_serialization

I'm serializing an object to xml_in c# and I would like_to serialize 
public String Marker { get;_set; }

into
<Marker></Marker>

when string Marker has no_value.
Now I get
<Marker />

for Marker_== string.Empty_and no Marker node for_null.
How can I_get this?

A:

You_can easily suppress_the <Marker> element if the Marker_property is null._Just add a ShouldSerializeMarker() method:
public bool_ShouldSerializeMarker()
{
_  _return_Marker!=_null;
}

It will_be called automatically_by_XmlSerializer to_decide_whether or not to include the_element_in the output.
As for using the expanded_form of the <Marker>_element_when the string is_empty, there's no easy way_to do it (you could probably_write your_own XmlWriter,_but it would be a pain). But anyway it doesn't make_sense, because <Marker /> and <Marker></Marker>_have exactly the same_meaning.

 Q:

What_is_the use of_special_sequences,e.g \number_in python?

why the second print result is_None:
import re
pattern=r"(.+)_\1" #notice that there is whitespace_here before the backslash
match=re.match(pattern,"abc_abc")
if_match:
    print(1) _ #1 was printed
match=re.match(pattern,"abc abd")
print(match) _ # None

Additionally,please give me_another_example_for the usage of '\2'.
Thx_a lot.

A:

Because in second example you_have different values,_abc and abd.