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How to save date only from WPF datepicker using c#?

I wanted to save only date in my database. There is a table which holds dates in database and the column which holds date in type of "Date". Now I want to store date from UI,so I placed WPF DatePicker in UI which allows to select date, but whenever I try to get the data from datepicker it shows the date and time.But I want just the dates to be stored in database.
This is the thing i am doing. It is demo code by the way. Can t upload original code. But this explains the thing. you can see in the message box, it shows 14-10-2015 00:00:00 , i want this zeros to be removed.

The dateTime Picker has a property DisplayDate of Type DateTime. This type contains date and time information.
Just use picker.DisplayDate.Date this returns a DateTime value with the TimeOfDay component set to 00:00.00
Edit
Usually you use an SQL Statement to insert or update values in the database. You should use a parametrized SQL statement with an parameter of type DateTime. The SQL API will take care of the conversion form DateTime (.Net type) to your SQL Date type and strip all time information away. It is a good idea to set the time component to 00:00:00 however to avoid any strange "roundings".

Use ToShortDateString() at the end something like:
var date = datePicker.SelectedDate.Value.Date.ToShortDateString();
MessageBox.Show(date.ToString());

c# SQL Server : DATETIME datatype

I am writing a unit test which stores an object with a DateTime parameter into a DATETIME2 SQL Server database column. I then create a temporary DateTime object called new_date_time and set that value to DateTime.Now.
The new_date_time value is then used to update the previous value and the SQL query to do this completes successfully.
When re-reading the object back from the database I receive the correct datetime values for days/hours/minutes but the .Ticks value is different from the new_date_time variables .Ticks property. The value returned from the read call returns the last 4 digits of the .Ticks property as zeros.
Why is this rounding occurring making my Assert.AreEqual fail?? :)
Thanks

I guess you are using Parameters.AddWithValue when writing the date to Sql Server. From MSDN the inferred type of a CLR DateTime is SqlDbType.DateTime and not SqlDbType.DateTime2 so the precision is being lost when writing your date to the database.
Explicitly setting the type to datetime2 will solve the issue. For example:
command.Parameters.AddWithValue("#now", DateTime.Now).SqlDbType =
SqlDbType.DateTime2;
Edit
#marc_s makes a good point with his comment:
You should read (and embrace!) Can we stop using AddWithValue() already?
To avoid these kind of issues from biting you, you could get into the habit of using the Add method on the parameters collection which takes the SqlDbType in some overloads and then set the Value property on that rather than using the AddWithValue method:
command.Parameters.Add("#now", SqlDbType.DateTime2).Value = DateTime.Now;

Maybe your database field is not storing your entire DateTime.Now value, because it's not precise enough. Why don't you simply compare your dates after you've formatted them as you like?
eg: (untested):
var databaseDate = d1.ToString("MM/dd/yyyy HH:mm:ss.fff");
var tempDate = d2.ToString("MM/dd/yyyy HH:mm:ss.fff");
Assert.AreEqual(databaseDate, tempDate);
I tested: using Linq To Entities My DateTime.Now is correctly saved to my datetime2(7) and equality test return True.
Are you sure you're passing your correct datetime value to the database? without truncating it?

Error inserting date values into database

I am having a weird problem inserting a date value into my database. When debugging my program, i realized it inserts the first five rows into the database but on the sixth it throws an exception. I verified if it was a syntax error or if something changed along the way by checking the first 5 queries that could execute successfully with the sixth and they are both the same. If there is a problem with the type, it should throw the exception from the beginning. What do you think?
This is the error I get
The conversion of a char data type to a datetime data type resulted in an out-of-range datetime value.

The conversion of a char data type to a datetime data type resulted in an out-of-range datetime value.
That suggests you're specifying the value as a string, and performing a conversion. Don't do that. Avoid string conversions wherever you possibly can. (I suspect there's quite possibly a disconnect between the string format you're providing and the one that's being used for parsing. Removing the string conversion completely is the best fix for this.)
Instead, provide the value as a SqlParameter with a DateTime value.

I think your problem comes because of the difference between DateTime type in C# which start at 01-01-0001 and in SQL Server which is `January 1, 1753, through December 31, 9999', check this link, so I think (due to the error Jon explained) you are trying to insert a Date value which is less than 01-01-1753 into SQL Server. That's why the SQL Exception is shown.

Error in inserting statement when inserting

I am working on c# project and using winform.
Here the problem is the query was working previously but now it is not working
Here the todaydate is a datetimePicker which is set to short date format
and my datatype of column is smalldatetime the error i am getting is
The conversion of a nvarchar data type to a
smalldatetime data type resulted in an out-of-range value.
The statement has been terminated.
if i have two date time picker one for date and second for time then how can i insert? please can you guide me

AddWithValue determines the datatype of the parameter from the value you pass.
In your case you are passing a string and thus the parameter is passed to the database as a string not as a datetime expected by the database
you should change that line
cmd.Parameters.AddWithValue("#today", todaydate.Value);

You're currently passing in the text value, which means something else is having to then parse it as a date. Don't do that. Given that you've got a DateTimePicker, you should just use the DateTime value it provides:
cmd.Parameters.AddWithValue("#today", todaydate.Value);
... or create the parameter first with a specific type (SqlDbType.SmallDateTime), then set the value using todaydate.Value. The important point is to avoid the string conversion.
Wherever possible, you should avoid converting values into text. Keep them in their "natural" form (e.g. DateTime in this case) for as much of the time as possible: on input, parse into the natural form, and if you can avoid ever converting to a string, do so!

I think your time7 column in database is smalldatetime and you tried to assign it a string. I don't suggest it.
Try with Add() method like this;
command.Parameters.Add("#today", SqlDbType.SmallDatetime);
command.Parameters["#today"].Value = todaydate.Value;
or you can use AddWithValue() as also like this;
cmd.Parameters.AddWithValue("#today", todaydate.Value);

Entity framework problem: How to handle errored column

I'm using ado.net entity data model. When update entity object, this error shown "String or binary data would be truncated" or "SqlDateTime overflow. Must be between 1/1/1753 12:00:00 AM and 12/31/9999 11:59:59 PM.". I know why this error shown.
How to handle this error created on which column ?

You probably have an uninitialized DateTime property on your object. The default value, which is in the year 0, cannot be stored in SQL Server's weirdly limited DATETIME columns. Set the property to a reasonable value or make it nullable in your DB.

In addition to Craig you could set both - the db-field and the variable - to nullable. Might be a bit more performant.