CODEWITHSUNDEEP
c#combobox
Matt Winer
Matt Winer

Reputation: 535

GetDrive Info into Combo Box but concatenate 2 display members

I'm trying to do a combo box that not only contains the drive letter but also the volume label. I'm able to get one or the other by changing the displayMember.

I understand that I need to use .Expression to concatenate them before they go into the combobox. But I'm confused. Should I put the GetDrive into a table first and then do the expression... then load it into the combobox?

Here's the code I have to get one display member:

    cmbDestDrive.DataSource = DriveInfo.GetDrives()
       .Where(d => d.DriveType == System.IO.DriveType.Removable).ToList();
    cmbDestDrive.DisplayMember = "Name";

This displays: F:\ I'd like to display F:\USB Drive

EDIT: Removed a useless line of code.

Upvotes: 0

Views: 539

Answers (2)

I4V
I4V

Reputation: 35363

You only need to Select the string you want.

var drives = DriveInfo.GetDrives()
            .Where(d=>d.IsReady && d.DriveType == System.IO.DriveType.Removable)
            .Select(d => d.Name + " (" + d.VolumeLabel + ")"  )
            .ToList();

cmbDestDrive.DataSource = drives;

No need for DisplayName

Upvotes: 1

It'sNotALie.
It'sNotALie.

Reputation: 22814

I would try something like this:

cmbDestDrive.DataSource = DriveInfo.GetDrives()
   .Where(d => d.DriveType == System.IO.DriveType.Removable).Select(n => new { OriginalObject = n, Data = string.Format("{0}|{1}", n.Name, n.VolumeLabel)}).ToList();
cmbDestDrive.DisplayMember = "Data";

It should work (at least I think it should, I can't test it!).

Upvotes: 0

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