Converting Object Properties to Array

Question

public class myObj { public string ob1 { get ; set ; } public string ob2 { get ; set ; } } List objlist = new List (); objlist.Add( new myObj { ob1 = "A" , ob2 = "1" }); objlist.Add( new myObj { ob1 = "B" , ob2 = "2" }); List string []> converted = MyConvert(objlist); public static List string []> MyConvert(List mobj) { foreach (objlist item in mobj) { string [] arr = ((IEnumerable)item).Cast () .Select(x => x.ToString()) .ToArray(); } } I've been trying to convert the object objlist to a List of string array. I've searched the net and found IEnumerable might help, but I got stopped by an error when I run the program.. System.InvalidCastException HResult=0x80004002 Message=Unable to cast object of type 'objlist' to type 'System.Collections.IEnumerable'.

Rijwan Ansari · Answer

Can you try one time this code and check public static List string []> MyConvert(List mobj) { List string []> returnData = new List string []>(); foreach (objlist item in mobj) { string [] arr= ((IEnumerable)item).Cast object >() .Select(x => x.ToString()) .ToArray(); returnData.add(arr); } return returnData; } instead of objlist use object Regards Rijwan

Sachin Singh · Answer

i will try to convert it in pure linq till then this is working code public static List string []> MyConvert(List mobj) { List string []> nsl = new List string []>(); foreach (var item in mobj) { nsl .Add(new string[] { item.ob1, item.ob2 }); //OR // List string > str = new List string >(); //str.Add(item.ob1); //str.Add(item.ob2); //nsl.Add(str.ToArray()); } return nsl; }

Asma Khalid · Answer

You can use NuGet Package https://www.nuget.org/packages/Asmak9.EssentialToolKit/ to convert any type of list to List type structure i.e. using Asmak9.EssentialToolKit; // Initialization. UtilityKit utilityKit = new UtilityKit(); List objlist = new List (); // Loading. objlist.Add( new myObj { ob1 = "A" , ob2 = "1" }); objlist.Add( new myObj { ob1 = "B" , ob2 = "2" }); // Converting. List string []> converted = utilityKit.ConvertListToStringArrayInList(objlist); You can use any type of object structure. checkout example code i.e. https://bit.ly/36CZNvH Mark answer as accpted if helpful Thanks & Regards, Asma Khalid For More Visit: www.asmak9.com or www.bytezaar.com

Aman Gupta · Answer

// An Object var obj = { "1" : 5, "2" : 7, "3" : 0, "4" : 0, "5" : 0 }; // Using Object.keys() and map() function // to convert convert an Object {} to an // Array [] of key-value pairs var result = Object.keys(obj).map(function (key) { // Using Number() to convert key to number type // Using obj[key] to retrieve key value return [Number(key), obj[key]]; }); // Printing values for (var i = 0; i for (var z = 0; z document.write(result[i][z] + " " ); } document.write( " " ); }

Ravi Patel · Answer

Hi Michael, try below code public static List MyConvert(List objlist) { List converted = new List (); foreach (var item in objlist) { converted.Add(new string[] { item.ob1, item.ob2 }); } return converted; }