C＃比较两个comboxBox值并删除重复值 [英] C# Compare two comboxBox values and remove duplicate values

问题描述

我有两个组合框有一些重复值，我的问题是我需要比较两个组合框并且只需要在comboBox 1中删除重复值，这里有一个代码表示如何在比较一个comboBox值时删除重复项。请支持我。

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());

推荐答案

假设您要单击要更新的按钮：

Assuming you want to click a Button to update:

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);
    }
}

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