Convert String to DateTime Object

Question

Hi All

 

I am new to this forum...

 

I am storing string "21-07-2006" (21 July 2006) in a string variable and want to store this value in a  DateTime Object. As it takes value in format #MM-dd-yyyy# i have to convert this value into this format.

I have tried this

 

string Objdate = "21-07-2006";
Response.Write(Convert.ToDateTime(Objdate ).ToString("mm-dd-yyyy").ToString());

 

But It generate Errors "String is not n correct date time format" ...something..2

Pls help

Sachin

 

 

Answer 1

Try this...

string strDate = "21-07-2006";
DateTimeFormatInfo dtfi = new DateTimeFormatInfo();
dtfi.ShortDatePattern = "dd-MM-yyyy";
dtfi.DateSeparator = "-";
DateTime objDate = Convert.ToDateTime(strDate, dtfi);
MessageBox.Show(objDate.ToShortDateString());

Answer 2

try this:

 

string myDate = "21-07-2006"; DateTime myDateTime = DateTime.Parse(myDate); Response.Write(myDateTime.ToString("mm-dd-yyyy"));

 

does this help?

 

 

Answer 3

 

First...Thanks for reply...but error is the same on the line...

string myDate = "21-07-2006";

DateTime myDateTime = DateTime.Parse(myDate); "string was not recognised as a valid DateTime."

Response.Write(myDateTime.ToString("mm-dd-yyyy"));

 

Answer 4

 

Thanks Dear...

It Works....Can I mention the datePattern in string format like

 

DateTime objDate = Convert.ToDateTime(strDate, "dd-MM-yyyy");

Like in Vb.Net

 

Answer 5

looks like perhaps a culture problem.

IFormatProvider theCultureInfo = new System.Globalization.CultureInfo("en-GB", true);

DateTime theDateTime = DateTime.ParseExact(abc, "mm-dd-yyyy", theCultureInfo);

 

Does this help? of course change the cultureinfo appropriately

Answer 6

 

Thanks for help...It Works

I have one more queries regarding Deserialize Classes that inherits from DictionaryBase Class

I have Customer Class that Contain ContactCollection Class and Occupation Class that again have ContactCollection Class

ContactCollection Class inherits from DictionaryBase Class

The Structure are as follows

public class Customer

{

public Customer()

{

}

private string _FirstName=null;

private string _LastName = null;

private ContactCollection _ContactColl = new ContactCollection();

public string FirstName

{

get { return _FirstName; }

set { _FirstName = value;}

}

public string LastName

{

get { return _LastName; }

set { _LastName = value; }

}

public ContactCollection ContactColl

{

get { return _ContactColl; }

set { _ContactColl = value; }

}

}

 

public class Contact

{

public Contact()

{ }

private string _ContactFirstName = null;

private string _ContactLastName = null;

public string ContactFirstName

{

get { return _ContactFirstName; }

set { _ContactFirstName = value; }

}

public string ContactLastName

{

get { return _ContactLastName; }

set { _ContactLastName = value; }

}

}

public class ContactCollection : System.Collections.DictionaryBase, IXmlSerializable

{

public XmlSerializer _XmlSerializer = null;

#region Public Properties

//public ICollection Keys

//{

// get

// {

// return (Dictionary[Keys]);

// }

//}

///// <summary>

/////

///// </summary>

//public ICollection Values

//{

// get

// {

// return (Dictionary.Values);

// }

//}

 

#endregion

#region Public Methods

/// <summary>

///

/// </summary>

/// <param name="key"></param>

/// <param name="value"></param>

public void Add(String key, Contact value)

{

Dictionary.Add(key, value);

}

public bool Contains(String key)

{

return (Dictionary.Contains(key));

}

public void Remove(String key)

{

Dictionary.Remove(key);

}

#endregion

#region Protected Override Method

protected override void OnInsert(Object key, Object value)

{

if (key.GetType() != Type.GetType("System.String"))

throw new ArgumentException("key must be of type String.", "key");

 

if (value.GetType() != Type.GetType("Test.Contact"))

throw new ArgumentException("value must be of type of nucleus.wto.core.DocumentImage.", "value");

}

protected override void OnRemove(Object key, Object value)

{

if (key.GetType() != Type.GetType("System.String"))

throw new ArgumentException("key must be of type String.", "key");

}

 protected override void OnSet(Object key, Object oldValue, Object newValue)

{

if (key.GetType() != Type.GetType("System.String"))

throw new ArgumentException("key must be of type String.", "key");

if (newValue.GetType() != Type.GetType("Test.Contact"))

throw new ArgumentException("newValue must be of type nucleus.wto.core.DocumentImage.", "newValue");

}

 protected override void OnValidate(Object key, Object value)

{

if (key.GetType() != Type.GetType("System.String"))

throw new ArgumentException("key must be of type String.", "key");

if (value.GetType() != Type.GetType("Test.Contact"))

throw new ArgumentException("value must be of type nucleus.wto.core.DocumentImage.", "value");

}

#endregion

#region IXmlSerializable Members

public System.Xml.Schema.XmlSchema GetSchema()

{

return null;

}

public XmlSerializer Serializer

{

get

{

if (_XmlSerializer == null)

_XmlSerializer = new XmlSerializer(typeof(Contact));

return _XmlSerializer;

}

}

public void ReadXml(XmlReader reader)

{

try

{

reader.Read();

while (reader.NodeType != XmlNodeType.EndElement)

{

Contact ObjContact;

ObjContact = (Contact)Serializer.Deserialize(reader);

reader.MoveToContent();

this.Dictionary.Add("1", ObjContact);

}

}

catch (Exception ex)

{ throw; }

}

 

 

public void WriteXml(XmlWriter writer)

{

try

{

foreach (string Keys in this.Dictionary.Keys)

{

Serializer.Serialize(writer, this.Dictionary[Keys]);

}

}

catch (Exception ex)

{ throw; }

}

#endregion

}

XmlSerializer Xsr = new XmlSerializer(typeof(Customer));

MemoryStream Ms = new MemoryStream();

Xsr.Serialize(Ms, ParObj);

Ms.Position = 0;

StreamReader Sr = new StreamReader(Ms);

String XmlStr = Sr.ReadToEnd();

StringReader StrR = new StringReader(XmlStr);

object ObjPar = Xsr.Deserialize(StrR);

 

Now the Problems comes in Deserialization of Customer Class Object. If I am having more than one object of Collection Classes like

AddressInfo Class, Expenses Class It Deserialize only one object not others...I thing there is some exception occured

 

Pks help

Answer 7

Fine, string to DateTime can be handled by Convert class. Look the following code snippet:

<code>

// Display the value and Kind property of a DateTime structure, the
// DateTime structure converted to local time, and the DateTime
// structure converted to universal time.

    public static string datePatt = @"M/d/yyyy hh:mm:ss tt";
    public static void Display(string title, DateTime inputDt)
    {
    DateTime dispDt = inputDt;
    string dtString;

// Display the original DateTime.

    dtString = dispDt.ToString(datePatt);
    Console.WriteLine("{0} {1}, Kind = {2}",
                      title, dtString, dispDt.Kind);

// Convert inputDt to local time and display the result.
// If inputDt.Kind is DateTimeKind.Utc, the conversion is performed.
// If inputDt.Kind is DateTimeKind.Local, the conversion is not performed.
// If inputDt.Kind is DateTimeKind.Unspecified, the conversion is
// performed as if inputDt was universal time.

    dispDt = inputDt.ToLocalTime();
    dtString = dispDt.ToString(datePatt);
    Console.WriteLine("  ToLocalTime:     {0}, Kind = {1}",
                      dtString, dispDt.Kind);

....

</code>

and tell me, when to use or not to use at sign '@' before 'datePatt' string to literise a string for CLR ???

@ to be :(

Answer 8

Try This
string givendate = "27/07/2009";
IFormatProvider iFP = new System.Globalization.CultureInfo("en-GB", true); //This does the trick FROM US to Great Britain
Convert.ToDateTime(givendate + " 2:00:00 PM", iFP);

Answer 9

Thank you very much.
But I convert in vb.net
And I can't convert to show in Datetimepicker
How to do?

Answer 10

Unspecified culture

 string strDate = "19/09/2010 14:00:00";
  var dtfi = new DateTimeFormatInfo { ShortDatePattern = "dd-MM-yyyy HH:mm:ss", DateSeparator = "-" };
  DateTime objDate = Convert.ToDateTime(strDate, dtfi);

---

Programer

Answer 11

Thnx I got the solution from your given code.

 

string strDate = "04-22-2011";

                DateTimeFormatInfo dtfi = new DateTimeFormatInfo();

                dtfi.ShortDatePattern = "MM-dd-yyyy";

                dtfi.DateSeparator = "-";

                DateTime objDate = Convert.ToDateTime(strDate, dtfi);

 

 

Answer 12

sir ...

i want Convert from MM/dd/yyyy hh:mm:ss tt to dd/MM/yyyy hh:mm:ss tt

only return MM/dd/yyyy

could plz any one help me!

this s sample code for mine

 string enteredVal = DateTime.Now.ToString("dd/MM/yyyy hh:mm:ss tt");
            DateTime dt = DateTime.ParseExact(enteredVal, "dd/MM/yyyy hh:mm:ss tt", CultureInfo.CreateSpecificCulture("en-US"));
            MessageBox.Show(dt.ToString());

---

Thanks & Regards,

Answer 13

Hi Brinda,

Use

DateTime.Now.ToShortDateString("dd/MM/yyyy")

Happy Coding.

Regards,

Jaliya

---

Jaliya Udagedara(MCPD) http://www.jaliyaudagedara.blogspot.com