转换成字符串
DateTime.Now.ToString("yyyy年MM月dd日");
DateTime.Now.ToString("yyyy.MM.dd");
DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss")
DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss", System.Globalization.DateTimeFormatInfo.InvariantInfo))
DateTime.Now.ToString("yyyy年MM月dd日");
DateTime.Now.ToString("yyyy.MM.dd");
DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss")
DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss", System.Globalization.DateTimeFormatInfo.InvariantInfo))
DateTime.Now.ToString("yyyy.MM.dd");
DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss");
System.Globalization.DateTimeFormatInfo.InvariantInfo));
col = new DataGridTextBoxColumn(); col.HeaderText = "开始时间";
col.MappingName = "startTime"
col.Width = 100;
col.Format = "t"; tblStyle.GridColumnStyles.Add(col); tblStyle.MappingName = ds.Tables[0].TableName;
dataGrid.TableStyles.Clear(); dataGrid.TableStyles.Add(tblStyle);