<Common:HomeAccordion runat="server">
    <Common:HomeAccordionPane runat="server" HeaderText="Pane #1">
        <Common:HomeAccordionItem runat="server" Text="Item #1"/>
        <Common:HomeAccordionItem runat="server" Text="Item #1"/>
    </Common:HomeAccordionPane>
    <Common:HomeAccordionPane runat="server" HeaderText="Pane #2">
        <Common:HomeAccordionItem runat="server" Text="Item #1"/>
        <Common:HomeAccordionItem runat="server" Text="Item #1"/>
    </Common:HomeAccordionPane>
</Common:HomeAccordion>

<Common:HomeAccordion runat="server">
    <DF:HomeAccordionPaneBasic runat="server" />
    <DF:HomeAccordionPaneSystem runat="server" />
    <DF:HomeAccordionPaneMyAccount runat="server" />
</Common:HomeAccordion>

Create Table TestSort
(ID  int identity(1,1),
Name nvarchar(30),
Color nvarchar(15)
)

Insert into TestSort (Name,color)
Values  ('Adjustable Race',null)
       ,('Bearing Ball',null)
       ,('Headset Ball Bearings',null)
       ,('LL Crankarm','Black')
       ,('ML Crankarm','Black')
       ,('Chainring','Black')
       ,('Front Derailleur Cage','Silver')
       ,('Front Derailleur Linkage','Silver')
       ,('Lock Ring','Silver')
       ,('HL Road Frame - Red, 62','Red')
       ,('HL Road Frame - Red, 48','Red')
       ,('LL Road Frame - Red, 44','Red')
       ,('Full-Finger Gloves, M','RED')
       ,('Road-550-W Yellow, 38','Yellow')
       ,('Road-550-W Yellow, 40','Yellow')
       ,('Road-550-W Yellow, 42','Yellow')
       ,('Classic Vest, S','Blue')
       ,('Classic Vest, M','Blue')
       ,('Classic Vest, L','Blue')

Select t.ID,t.Name,t.Color from TestSort as t order by t.Color

Select t.ID,t.Name,t.Color from TestSort as t 
Where t.color is not null
order by  Case t.Color
When 'Red' Then Null
Else t.color 
End;

Select * into Simulation from 
(Select t.ID,t.Name,t.Color,
Case t.Color
When 'Red' Then Null
Else t.color 
End RedNull
from TestSort as t 
Where t.color is not null) A

Select * from Simulation order by Rednull

//So we have:

String.IsNullOrEmpty(""); //True
String.IsNullOrEmpty(null); //True
String.IsNullOrEmpty("   "); //False
String.IsNullOrEmpty("\n"); //False
String.IsNullOrEmpty("\t"); //False
String.IsNullOrEmpty("hello"); //False

//but also

String.IsNullOrWhiteSpace("");//True
String.IsNullOrWhiteSpace(null);//True
String.IsNullOrWhiteSpace("   ");//True
String.IsNullOrWhiteSpace("\n");//True
String.IsNullOrWhiteSpace("\t");//True
String.IsNullOrWhiteSpace("hello");//False

 public class LockFilter : ActionFilterAttribute
    {
        static ConcurrentDictionary<StringBuilder, int> _properties;
        static LockFilter()
        {
            _properties = new ConcurrentDictionary<StringBuilder, int>();
        }

        public  int Duration { get; set; }
        public string VaryByParam { get; set; }

        public override async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)
        {
            var actionArguments = context.ActionArguments.Values.Single();
            var properties = VaryByParam.Split(",").ToList();

            StringBuilder key = new StringBuilder();
            foreach (var actionArgument in actionArguments.GetType().GetProperties())
            {
                if (!properties.Any(t => t.Trim().ToLower() == actionArgument.Name.ToLower()))
                    continue;
                var value = actionArguments.GetType().GetProperty(actionArgument.Name).GetValue(actionArguments, null).ToString();
                key.Append(value);
            }

            _properties.AddOrUpdate(key, 1, (x, y) => y + 1);

            // rest of code 
        }
    }

git branch  [branch name]

git branch

git checkout [branch name]

git checkout -b [branch name]

git branch -d [branch name]

git branch -m [old name][new name]

git merge [branch name]

git merge --abort

git merge --continue

git stash save "[stash name]"

git stash list

stash@{number}

git stash show stahs@{[number]}

git stash Drop [stash name]

git stash clear

در شاخه master فایل readme5 اضافه شده و در شاخه a2 فایل readme4 اضافه شده و بعد تغییری در آن ذخیره شده است

شاخه a1 در master ادغام شده است

شکل درختی شاخه‌ها پس از ادغام

git rebase [destination branch]

git rebase [destination][source]

git cherry-pick [branch name]