How to compare datagridview data with listbox C#

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C#

Visual-Studio

need help trying to compare datagridview data with list box in c# the datagridview data is entered manuly by typing it in what im trying to do is search a listbox with datagridview data
this is what i have so far

Thank you in advance.

What I have tried:

foreach (DataGridViewRow row in dataGridView2.Rows)
            {
                //datafridview cell[0] is textbox
                //datagridview cell[1] is checkbox

                //if datagridview cell[0] text is in listbox3 items
                if (row.Cells[0].Value == listBox3.Items)

                {
                //if item is in listbox3 then checkbox checked
                 row.Cells[1].Value = true;


                }
                else
                {
               //if item is not in listbox3 then checkbox unchecked
                 row.Cells[1].Value = false;

                }