How do I check for duplicate answers in this array? c#

arrays, c#, duplicates

Solution

One simple approach is via LINQ:

bool allUnique = Numbers.Distinct().Count() == Numbers.Length;

Problem

Sorry for the newbie question. Could someone help me out? Simple array here. What's the best/easiest method to check all the user input is unique and not duplicated? Thanks ``` private void btnNext_Click(object sender, EventArgs e) { string[] Numbers = new string[5]; Numbers[0] = txtNumber1.Text; Numbers[1] = txtNumber2.Text; Numbers[2] = txtNumber3.Text; Numbers[3] = txtNumber4.Text; Numbers[4] = txtNumber5.Text; foreach (string Result in Numbers) { lbNumbers.Items.Add(Result); } txtNumber1.Clear(); txtNumber2.Clear(); txtNumber3.Clear(); txtNumber4.Clear(); txtNumber5.Clear(); } } ``` } I should have added I need to check to happen before the numbers are output. Thanks

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