类 A 
 {

 public   string  CSVName { get ;  set ; } 
 public   string 名称{ get ;  set ;} 
 public   string  SchemaName { get ;  set ;} 
 public   bool  PrimaryAttribute { get ;  set ;} 

} 

  string  [] arr =  new   string  [ 2 跨度>]; 
 arr [ 0 ] =  名称 跨度>; 
 arr [ 1 ] =   Value 跨度>; 

列表< A> list =  new 列表< A>（）; 
 string  valueofschemaname = list.Where（li = >  li.CSVName == arr [  0 ]&& li.PrimaryAttribute ==  true ）。First（）。SchemaName; 

I have one List<string> whicha contains data as follows
at 0 th index it has data as follows
{ CSVName = Name, SchemaName = adx_name, PrimaryAttribute = true }
& at first index it has data as follows
{ CSVName = Value, SchemaName = adx_value, PrimaryAttribute = }

i have one String[] array which contains following value
at 0th index
"Name"
At 1st index
"Value"

Now i want to write a query to match the string[] array values with list<string>
and to check if "Primary attribute" of list<string> is set to true or not
if it is true then i need to assign
schema name of that row to some variable

for example

in above my example
{ CSVName = Name, SchemaName = adx_name, PrimaryAttribute = true }

primaryattribute is true
so schemaname value of this row will be assign to any variable

string valueofschemaname=SchemaName.value
output will be :

valueofschemaname=adx_name ;


please ans

class A
  {

      public string CSVName { get; set; }
      public string Name {get;set;}
      public string SchemaName  {get;set;}
      public bool PrimaryAttribute {get;set;}

  }

string[] arr = new string[2];
        arr[0] = "Name";
        arr[1] = "Value";

        List<A> list = new List<A>();
        string valueofschemaname = list.Where(li => li.CSVName == arr[0] && li.PrimaryAttribute == true).First().SchemaName ;