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Loading Datagridview via textbox with binding controls

Posted on 2010-11-23
9
Medium Priority
?
330 Views
Last Modified: 2012-05-10
vb.net 2008
sql server express 2005 backend
datagridview1
textbox =  fldCmfrnum


I have 2 situations.
I have a database table thats houses 3.4 mil + records

I DO NOT need the datagrid to load with all the data when the form opens or as you navigate through records.

I would like the datagridview1 to filter via a Textbox called   "txtCmfrnum"

as a person types in the textbox the datagridview1 filters to show the results...

tblXref_Bindingsource
is the control the datagridview is bound to...

Thanks
fordraiders



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Question by:fordraiders
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9 Comments
 
LVL 83

Expert Comment

by:CodeCruiser
ID: 34199661
I dont think its a good idea to filter along as the user types given the numnber of records. I would suggest to use a button to invoke the search once the search string has been entered.

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Author Comment

by:fordraiders
ID: 34200178
ok...would I have to refill the table adapter each time with the search criteria?
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LVL 83

Expert Comment

by:CodeCruiser
ID: 34203450
You would have to connect to database and load the results filtered by the criteria each time user presses a key, if you follow your idea. If you follow my idea, you would connect to the DB and get results every time user presses Load button.
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LVL 3

Author Comment

by:fordraiders
ID: 34206735
code cruiser, I'm in the "Search Criteria Builder" after placing my dataset on the form...
trying to create a parameterized query to do a  "start with" wildcard search.

from this reference:
http://msdn.microsoft.com/en-US/library/hbsty6z7(v=VS.80).aspx


This will but need: a wild card syntax for "Starts With" search
SELECT MFRNUM, MFRNAME, WWGMFRNUM, WWGMFRNAME, WWGDESC, ITEM, COMMENTS, REDBOOKNUM, XREF, SPIN, RICHTEXT FROM dbo.SapData
WHERE MFRNUM = ?

SELECT MFRNUM, MFRNAME, WWGMFRNUM, WWGMFRNAME, WWGDESC, ITEM, COMMENTS, REDBOOKNUM, XREF, SPIN, RICHTEXT FROM dbo.SapData
WHERE MFRNUM = '? & *'
but will not work  !


Thanks'
fordraiders



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LVL 83

Expert Comment

by:CodeCruiser
ID: 34206837
WHERE MFRNUM Like '5%'

What is the type of MFRNum?
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Author Comment

by:fordraiders
ID: 34208175
text
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LVL 83

Accepted Solution

by:
CodeCruiser earned 2000 total points
ID: 34208194
Yeah then above syntax should work. Have you tried it?

For ends with

Where MFRNum Like '%N'

For anywere

Where MFRNum Like '%N%'

If you need to supply the value, from a textbox for example, then

Where MFRNum Like '" & txtFilter.Text & "%'"
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Author Closing Comment

by:fordraiders
ID: 34215563
Thaanks
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LVL 83

Expert Comment

by:CodeCruiser
ID: 34216354
Glad to help :-)
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