将两个组合框绑定到同一个数据源，每个组合都有单独的行为

Question

现在，当我在第一个组合框中选择项目时，第二个组合框模仿了选择。 我希望能够分别在每个组合框中进行选择。 谢谢。

 List<W6AdminUIs2.DictionaryObject> taskStatuses = W6AdminUIs2.GlobalFunctions.GetDictionaryItems("TaskStatus");

    // Init the binding source of the statuses.
    BindingSource bsFromStatuses = new BindingSource();
    bsFromStatuses.DataSource = taskStatuses;

    //Bind the "From" combo box to binding source.
    cBoxFrom.DataSource = bsFromStatuses.DataSource;
    cBoxFrom.DisplayMember = "Name";
    cBoxFrom.ValueMember = "Key";

    // Init the binding source of the statuses.
    BindingSource bsToStatuses = new BindingSource();
    bsToStatuses.DataSource = taskStatuses;

    //Bind the "From" combo box to binding source.
    cBoxTo.DataSource = bsToStatuses.DataSource;
    cBoxTo.DisplayMember = "Name";
    cBoxTo.ValueMember = "Key";

Answer 1

我不知道您使用的是哪种字典，但我使用的是普通字典，而且这段代码的行为不是这样：

Dictionary<string,string> dict = new Dictionary<string, string>();
dict.Add("S1", "Sample1");
dict.Add("S2", "Sample2");
dict.Add("S3", "Sample3");
dict.Add("S4", "Sample4");

comboBox1.DataSource = new BindingSource(dict, null);
comboBox1.DisplayMember = "value";
comboBox1.ValueMember = "key";

comboBox2.DataSource = new BindingSource(dict, null);
comboBox2.DisplayMember = "value";
comboBox2.ValueMember = "key";