c# string array join comma code example

Example 1: how to join array indexes with comma in c#

List<string> testList= new List<string>();
testList.Add("Apple"); // Add string 1
testList.Add("Banana"); // 2
testList.Add("Mango"); // 3
testList.Add("Blue Berry"); // 4
testList.Add("Water Melon"); // 5

string JoinDataString = string.Join(",", testList.ToArray());

Example 2: c# join strings with comma

string[] myValues = new string[] { ... };
string csvString = string.Join(",", myValues);

//OR

string csvString = string.Join(",", value1, value2, value3, ...);