asp中将文本框内的日期转换成datetime类型的数据

将字符类型的日期转化为DateTime类型主要有以下方法：方法一：Convert.ToDateTime(string)string格式有要求，必须是yyyy-MM-dd hh:mm:ss方法二：Convert.ToDateTime(string, IFormatProvider)

DateTime dt;
DateTimeFormatInfo dtFormat = new System.GlobalizationDateTimeFormatInfo();
dtFormat.ShortDatePattern = "yyyy/MM/dd";
dt = Convert.ToDateTime("2011/05/26", dtFormat);

方法三：DateTime.ParseExact()

string dateString = "20110526";DateTime dt = DateTime.ParseExact(dateString, "yyyyMMdd",System.Globalization.CultureInfo.CurrentCulture);DateTime dt = DateTime.ParseExact(dateString, "yyyyMMdd",System.Globalization.CultureInfo.InvariantCulture);