Select a GridView Row by Value Not by Index 3

[bangkokbill]

Is it possible to select a gridview row by value instead of setting selectedindex? I know selectedvalue is readonly, but maybe there's another way aside from iterating through all the rows and checking keys

The reason i need to select value instead of index is that after updating record its index in the grid could easily change depending on the sort expression and the newly updated values.

 

[jmeckley]

that's what i would do if looking for an item my key

foreach(GridViewRow row in GridView.Rows)
{
   if(row.DataKeys["Id"] == myId)
   {
       GridView.SelectedIndex = row.RowIndex;
       break;
   }
}

or something to that effect.

Jason Meckley
Programmer
Specialty Bakers, Inc.

 

[bangkokbill]

I was afraid so. I simply want the row highlighted to indicate to the users which row was updated so it's immediately apparent to them. I guess I can expect performance issues for larger record sets if the record in question is at the bottom of the list.

I just can't understand why it's possible to set SelectedValue for dropdownlists and radiobuttonlists, but not for gridviews. Oh well.

 

[jmeckley]

how do you know there will be a preformance hit? how have to determined that enumerating the gridview is where the preformance hit lies?

as a general rule IO where you take the biggest preformance hit. Database connections and File operations. the next preformance hit I notice with asp.net is usually rendering with viewstate. none of these issues directly deal with iterating a collection.

Jason Meckley
Programmer
Specialty Bakers, Inc.

 

[bangkokbill]

I probably don't know what I'm talking regarding performance issues.

However, now that I'm looking at this option of looping through the records, I can't even find a datakeys property on the GridViewRow. Can you provide exact syntax, since the closesg i can find is "row.RowIndex" which takes me back to where I started?

 

[jmeckley]

foreach(GridViewRow row in MyGridView.Rows)
{
   if(MyGridView.DataKeys[row.RowIndex]["Id"] == myId)
   {
       GridView.SelectedIndex = row.RowIndex;
       break;
   }
}

Jason Meckley
Programmer
Specialty Bakers, Inc.

 

[tperri]

I think you can get what you need from this link:

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.datakeys(VS.80).aspx

 

[tperri]

dang too late

 

[bangkokbill]

My brain's not working today. That was too obvious!

Thanks for taking the time to help me.