Multiple ComboBox with single DataSource

问题

I have 2 combo boxes that are tied up to a single binding source in a dataset. When I select an item in one of the combo boxes, they both change. I don't have code in the combobox themselves but I do have the dataset fill:

this.cLIENT_BranchesTableAdapter.Fill(this.gcDataSet.CLIENT_Branches);

What could be causing this?

回答1:

Give each ComboBox their own BindingSource:

comboBox1.DataSource = new BindingSource(source, string.Empty);
comboBox2.DataSource = new BindingSource(source, string.Empty);

回答2:

This should fix your issue.

combobox2.BindingContext = new BindingContext();

来源：https://stackoverflow.com/questions/33108993/multiple-combobox-with-single-datasource