Problem with date and time

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Dear sir/ma'am

i am using visual studio 2005 and sqlserver 2000

sir when i run my webpage then problem occur in the line as
String not recognized as valid date time

VB

cm = New SqlCommand("select * from h_leave where holi_date1='" & Convert.ToDateTime(Me.txt_frmdate.Text).ToString("MM/dd/yyyy") & "' or holi_date2='" & Convert.ToDateTime(Me.txt_todate.Text).ToString("MM/dd/yyyy") & "' or (holi_date1 between '" & Convert.ToDateTime(Me.txt_frmdate.Text).ToString("MM/dd/yyyy") & "' and '" & Convert.ToDateTime(Me.txt_todate.Text).ToString("MM/dd/yyyy") & "')or(holi_date2 between '" & Convert.ToDateTime(Me.txt_frmdate.Text).ToString("MM/dd/yyyy") & "' and '" & Convert.ToDateTime(Me.txt_todate.Text).ToString("MM/dd/yyyy") & "')", con)

help me to check the date value

Posted 31-May-13 19:47pm

ankur789

Updated 1-Jun-13 18:04pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v2

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Dave Kreskowiak · Answer 1 · 2013-06-01T14:47:00

Solution 2

Instead of doing this string concatenation garbage, use a parameterized query. Google for "vb.net parameterized query" for what you should be doing and why. Your code introduced security risks that can wipe out your database.

Posted 1-Jun-13 14:47pm

Dave Kreskowiak

KarthickInfosys · Answer 2 · 2013-05-31T19:54:00

Solution 1

Instead of Convert.ToDateTime() try

VB

DateTime dt = DateTime.ParseExact(value, format, CultureInfo.InvariantCulture);

Posted 31-May-13 19:54pm

KarthickInfosys

Updated 1-Jun-13 18:04pm

v2