Handling DBNull Values

Question

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I have an asp:repeater that has a problem when trying to display a NULL DATE value from an SQL database.

HTML

<%# Databinder.Eval(Container.DataItem, "myDate") %>

Any suggestions on how to display the info in a repeater if it is a dateTime OR if it is a NULL date?

Posted 10-Dec-13 11:01am

priya9826

Updated 10-Dec-13 11:07am

RaisKazi

v3

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Comments

bowlturner 10-Dec-13 17:25pm

Is this just to display? if so you can format the dates to string and the null can be an empty string.

creepz03 10-Dec-13 18:57pm

I agree with this guy.. if it's only for display then convert in to string.

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Karthik_Mahalingam · Answer 1 · 2013-12-10T18:26:00

Solution 2

Hi Priya

Try like this to display "NULL" if it is a null value

HTML

Text='<%# Eval( "myDate") == DBNull.Value ? "NULL" : Eval( "myDate") %>'

Posted 10-Dec-13 18:26pm

Karthik_Mahalingam

priya9826 · Answer 2 · 2013-12-10T12:15:00

HTML

SelectedDate='<%#checkNullValues(DataBinder.Eval(Container.DataItem, "RefundDate"))%>'

C#

protected DateTime checkNullValues(object refundDate)
    {
        DateTime voidDate = Convert.ToDateTime("1/1/1900");
        if (refundDate == null || refundDate=="" || refundDate==DBNull.Value)
          return VoidDate;

        else
            return Convert.ToDateTime(refundDate);
    }

Handling DBNull Values

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