I am trying to check checkboxes on certain rows of a gridview based off of a selection from a dropdown. I have a gridview where the first column is a checkbox (cb_pain), and the second column is an ID (DrugID). The user makes a selection from the dropdown list, this fires a stored procedure. The stored procedure returns all of the DrugID's that need to be checked. I'm able to pull the DrugID from the data like this: dt.Rows(0)("pain1").ToString() That tells me DrugID for a row that needs to be checked.
Basically I would like to check the checkbox on the row where DrugID = dt.Rows(0)("pain1").ToString()
I think this needs to be done on the selectedindexchange of the dropdown.
My gridview looks like this: (sorry for the dot's, I couldn't figure out how to tab)
cb_pain........DrugID...............Field1
x.................3...................other data
x.................23.................other data
x.................24.................other data
x.................37.................other data
How can I use this to check the checkbox on the row that has the right DrugID?
I've tried a couple of different DirectCast things, but no success. Can anyone point me in the right direction?
Thanks
Another option that I tend to prefer is to make use of the
RowDataBound
event of the GridView. As each row gets data bound to it, this event gets called. What you would do is find theDrugID
control and check its value. If it is what you want, do something.First, let your GridView know of the event.
Then handle the event. If the
DrugID
is 23, find the CheckBox and check it.**Note here that I am assuming the types of controls to be labels and checkboxes. You have not shown your markup, so this is the best I can do.
After your edit, I would probably agree with you. This is something that could be done in the
SelectedIndexChanged
event of the DropDownList. Get the list ofDrugIDs
that need to be checked and iterate each row of your GridView, checking those that match.