Hi chrisryhal,
Use the Value property.
from MSDN:
"The settings for value are:
CheckBox control: 0 is Unchecked (default), 1 is Checked, and 2 is Grayed (dimmed)."
bkt
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Question
Pass Checkbox Value to SQL
I need some help. Never did this before with a check box. Can some please show me how to pass the value of "1" to SQL if checked and "0" if not checked.
I am able to do it with textboxes:
If Not IsNull(txtEntryPerson.Text
rsData.Fields("EntryPerson
Else
rsData.Fields("EntryPerson
End If
but not sure about checkboxes.
Thanks
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Answers
Check boxes .VALUE property store 0, 1, 2. Radio boxes store TRUE/FALSE
SQL Server and most other database that use a bit flag store 0 for false (or off/no) and 1 for true (or on/yes)
I normally solve this by these two methods (1 for check boxes and 2 for radio buttons)
1) mydatabasefield = abs(mycheckbox.value <> 0)
2) mydatabasefield = abs(myradiobutton.value)
ABS will force the TRUE/FALSE value to be 0 or 1
I also use this when dealing with the registry because I don't want TRUE or FALSE in my registry.
>>I specifically asked to send a value of 1 if check and 0 if not, and I got nothing related. FDS_FATBOY, how does rsData.Fields("myBoolean")
Well I'm sorry! I was quite busy working. I just misread.
If you are using a BIT (or boolean or Yes/No depending on the RDBMS) type field in your SQL table - as you should, a true or false = 1 or 0. So my solution would work.
If you are using an INT or other numeric, you are storing a boolean value in the wrong data type.
schworak's answer is good, but if (as I suspect) you don't use greyed boxes then this is the most efficient:
rsData.Fields("myBoolean")
What data type are you storing them in?
>>The answer I gave does return 1 if checked 0 if not checked. So what is the problem?
Nothing - please read what I wrote:
>> schworak's answer is good, but if (as I suspect) you don't use greyed boxes then this is the most efficient:
What I meant was - he already has the value. performing a function on it to get the same value out is (obviously) not as efficient as using the original value. i.e. not performing that function.
Ah. Now I see what you mean.
I used the function to be more generic and to demonstrate that it also works on radio buttons the ABS function call is super effecient because it simply turns off the negative bit in of the inner value
Another thing about using the ABS function in that way in case no one noticed, you aren't limited to checkboxes or radio buttons. You can use it any place you want a 1 or 0 (zero) returned.
So instead of say using an IF THEN ELSE block you can put your logic in the ABS function.
For example (and way beyond this question but good for theory)
IF somevariable > somevalue THEN
datafield = 1
ELSE
datafield = 0
ELSE
using the ABS function it would look like this.
datafield = ABS(somevariable > somevalue)
ABS is very effecient because it simply clears the minus bit of the inner value.
Enjoy!
In a general sense, boolean values in SQL Server 2000 are represented as bits, numeric 0 or 1. When I am building a SQL INSERT or UPDATE statement, I need a TRUE value to be represented as "1" and a FALSE value to be represented as "0". Easiest way to do it in one line is : dim strBoolean as String = IIF(MyBoolean,"1","0") and then concatenate strBoolean into the SQL string.
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by: ryancysPosted on 2005-01-07 at 07:44:37ID: 12984289
try:
...
rsData.Fields("myBoolean")
...
Where if checked means the boolean value is True for above condition.
Hope this helps