C# Compare two comboxBox values and remove duplicate values

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Hi, I have two comboBoxes which have some duplicate values, my problem is I need to compare tow comboBoxes and need to remove duplicate values in comboBox 1 only, here is a code which express how to remove duplicates in comparing one comboBox value. Please support me.

comboBox1.Items.AddRange(dt.AsEnumerable().Select(i => i.ItemArray[0]).Distinct().ToArray());

Posted 19-Nov-14 4:56am

abdulsafran

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ZurdoDev 19-Nov-14 11:08am

Does the code work?

This is one of those code issues that has many different ways of doing it and you'll end up spending more time trying to perfect it than if you just picked a way and did it.

abdulsafran 19-Nov-14 11:33am

It's not working exactly, I just want to compare two combo box and remove duplicate values. That's all.

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BillWoodruff · Accepted Answer · 2014-11-19T06:24:00

Solution 1

Assuming you want to click a Button to update:

C#

private void RemoveCBDuplicates_Click(object sender, EventArgs e)
{
    var itms1 = TheFirstComboBox.Items;
    var itms2 = TheSecondComboBox.Items;

    foreach (var itm in itms2)
    {
        if(itms1.Contains(itm)) itms1.Items.Remove(itm);
    }
}

Posted 19-Nov-14 6:24am

BillWoodruff

Comments

Sergey Alexandrovich Kryukov 19-Nov-14 15:47pm

5ed.
—SA

abdulsafran 19-Nov-14 22:02pm

Thank you very much BillWoodruff!!!

Member 12431701 15-Oct-18 3:18am

Am receiving error as best overloaded methods has invalid arguments

BillWoodruff 15-Oct-18 8:22am

The question is 4 years old. I suggest you post a new question with the code that the error occurs in. cheers, Bill

Member 12431701 31-Oct-19 8:38am

thank you..it was helpful