将日期从mm / dd / yyyy转换为yyyymmdd

What I want is when user input text in textbox in date format, text change to string. for example when user enters 9/25/2012 I have to store it as 20120925. Help would be appreciated

我想要的是当用户在日期格式的文本框中输入文本时，文本更改为字符串。例如，当用户输入9/25/2012时，我必须将其存储为20120925.帮助将不胜感激

6 个解决方案

#1

string converted = DateTime.ParseExact(strInput, "MM/dd/yyyy", CultureInfo.InvariantCulture)
                  .ToString("yyyyMMdd");

#2

string str = blackOutFromDate.ToString("yyyyMMdd");

#3

fileName contains that date string. So, I split the fileName using an empty string as a delimiter, to get the expectedDate.

fileName包含该日期字符串。因此，我使用空字符串作为分隔符拆分fileName，以获取expectedDate。

I then split the expectedDate using "-" as delimiter and convert it to datetime.

然后我使用“ - ”作为分隔符拆分expectedDate并将其转换为datetime。

string[] splitFileName = fileName.Split(' ');
string expectedDate = (splitFileName[1]);
string[] dateparts = expectedDate.Split('-');
expextedDate = dateparts[1] + "-" + dateparts[0] + "-" + dateparts[2]; 
DateTime CallDate = Convert.ToDateTime(expextedDate);

#4

Use System.DateTime class

使用System.DateTime类

var date = Convert.ToDateTime(textBox1.Text);
textBox1.Text = date.Year + "" + date.Month + date.Day;

#5

Try this

尝试这个

var date = DateTime.Parse("9/25/2012");
var modified = string.format("{0}{1}{2}", date.Year, date.Month, date.Day);

#6

You can try this, it worked for me.

你可以尝试这个，它对我有用。

 DateTime dt = Convert.ToDateTime(txtFrom.Text);
 string date = Convert.ToDateTime(dt).ToString("yyyyMMdd");

#1

string converted = DateTime.ParseExact(strInput, "MM/dd/yyyy", CultureInfo.InvariantCulture)
                  .ToString("yyyyMMdd");

#2

string str = blackOutFromDate.ToString("yyyyMMdd");

#3