replacing with string if database column is null

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hi,

i just want to ask how to code in C# using sql server the following scenario:

1. I am coding a page that reflects if a form is already submitted or not. i have [name] column and [date submitted] column.

2. I want to replace the data inside the [date submitted] column. I want to reflect it as ALREADY SUBMITTED if [date submitted] has entry and NOT YET SUBMITTED if [date submitted] is null.

3. [name] and [date submitted] comes from different databases: mydb.name and project.dateSubmitted

4. it will reflect into just one gridview

5. inside gridview, there will be a column for buttons. if [date submitted] is null, the button will be disabled. enabled if [date submitted] has entry.

thanks

Posted 11-Aug-13 19:50pm

macmacmacmac

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Maciej Los 12-Aug-13 1:56am

And what is the exact question?

2 solutions

Solution 1

Try

//dr is datareader
if ( dr[0][0] is DBNull )
{
//Handle null here
}

Posted 11-Aug-13 19:54pm

Abhinav S

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Maciej Los 12-Aug-13 2:05am

A5!

Abhinav S 12-Aug-13 2:10am

Thanks

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Gauri Chodanker · Accepted Answer · 2013-08-11T19:58:00

Solution 2

The best way to handle this is get the required result from the database. The query would be like the one below:

SQL

SELECT NAME,
CASE WHEN dateSubmitted IS NULL THEN 'NOT YET SUBMITTED'
     ELSE 'ALREADY SUBMITTED' END 'STATUS'
FROM MYTABLE

Posted 11-Aug-13 19:58pm

Gauri Chodanker

Comments

Maciej Los 12-Aug-13 2:05am

Good answer, +5!

macmacmacmac 12-Aug-13 2:08am

nice answer, +5. now, i want it to feed inside a gridview that has a column for button. if dateSubmitted is null, the buttons will be disabled. enabled if has entry.