When we click on a combo box, there is a small triangle on the upper right of the combo box. When we click on the triangle, the Combo Box task box appears. How do we change the default name of the Display Member and the Value Member?

The names of the attributes in the Data Property Name of the DataGridView tasks box can be changed, but when I try to select that name in Display Member and Value Member text boxes in the Combo Box task box, the name I had set in the Data Property Name of the DataGridView task box does not show there.

Why is this and how do I correct this?

i think you want to select the combo box and then press F4. the properties box should appear, then make your alterations.