DataGridView格式化时间的有关问题

DataGridView格式化时间的问题
代码如下：
dataGridView1.Columns["**"].DefaultCellStyle.Format=“HH:mm"

但是起不到作用，不知道什么原因~
请教各位！

[解决办法]
可以的

C# code

            dataGridView.Columns[1].DefaultCellStyle.Format = "HH:mm";            dataGridView.Rows.Add(new object[] { 2, DateTime.Now, 3 });            dataGridView.Rows.Add(new object[] { 5, DateTime.Now, 6 });            dataGridView.Rows.Add(new object[] { 8, DateTime.Now, 9 });
[解决办法]
Assembly code
Formating the Date To Format as dd/MM/yyyy is     this.dgView.Columns["Inv/Ch Date"].DefaultCellStyle.Format = "dd/MM/yyyy";To Format as dd/MMM/yyyy is     this.dgView.Columns["Inv/Ch Date"].DefaultCellStyle.Format = "dd/MMM/yyyy";To Format as dd-MMM-yyyy is     this.dgView.Columns["Inv/Ch Date"].DefaultCellStyle.Format = "dd-MMM-yyyy";