Solved

DataGrid Search

Posted on 2006-06-20
4
261 Views
Last Modified: 2010-04-16
What is the best way to search a datagrid?
I know of 2 ways:
Loop through the rows checking the values for the one that I am searching for,
Use a dataview.find method.

I would like to use a dataview method, but it requires that I sort the dataview.  If I sort the dataview, won't it return the wrong row index of my search field.  Ex:

If my datagrid lists appointments for a doctor and I am searching for patient number 3 which is 5th on the list.  If I sort the dataview by patient number, won't that give me the wrong index compared to my datagrid.  My datagrid is showing my appointments in order by appointment time.  Another thing, what if I don't know the names of my columns at the time I am trying to search a dataview???????????????

Any help is appreciated,
Kendal
0
Comment
Question by:gvector1
  • 2
  • 2
4 Comments
 
LVL 20

Expert Comment

by:TheAvenger
ID: 16948709
If you have a DataTable as the source of the view, you can search by using the Select method. Its something like:

dataTable.Select ("PatientNumber = " + patientNumber);

This returns an array of DataRows which meet the condition. You could dynamically create the condition string if you don't know the column name at design time.
0
 

Author Comment

by:gvector1
ID: 16950675
But I need to know the row #s containing the values entered for the search so that I can actually select those rows within the datagrid.  How can I go about doing that????
0
 
LVL 20

Accepted Solution

by:
TheAvenger earned 500 total points
ID: 16950708
You need to go over all rows in the dataview and check if they have the row you need. Something lik:

int index = -1;
for (int i = 0; i < dataView.Count; i++)
{
  if (dataView[i] == rowToFind)
  {
      index = i;
      break;
  }
}

// index contains now the index of the row
0
 

Author Comment

by:gvector1
ID: 16950879
That's what I was wondering.  Whether looping through the rows in the table is an efficient method for this.  Thanks for the confimation.
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

We all know that functional code is the leg that any good program stands on when it comes right down to it, however, if your program lacks a good user interface your product may not have the appeal needed to keep your customers happy. This issue can…
This article is for Object-Oriented Programming (OOP) beginners. An Interface contains declarations of events, indexers, methods and/or properties. Any class which implements the Interface should provide the concrete implementation for each Inter…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…
In an interesting question (https://www.experts-exchange.com/questions/29008360/) here at Experts Exchange, a member asked how to split a single image into multiple images. The primary usage for this is to place many photographs on a flatbed scanner…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question