Winforms: Missing operand after 'Number' operator

Winforms: Missing operand after 'Number' operator

I am trying to bind my textbox1 with the datagridview2 so that the textbox can filter the row when the value in textbox and datagridview matches. However, I kept getting the above error. Below is my code

I am trying to bind my textbox1 with the datagridview2 so that the textbox can filter the row when the value in textbox and datagridview matches. However, I kept getting the above error. Below is my code

private void textBox1_TextChanged(object sender, EventArgs e)
    {
     (dataGridView2.DataSource as DataTable).DefaultView.RowFilter = string.Format("Vehicle Number LIKE '%{0}%'", textBox1.Text); //error here
     }   


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