how to check list index value is empty in vb.net

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hai I don't know how to check the list value
for example

VB

LocList = New List(Of List(Of String))

LocList is the list contains values

VB

LocList.Add("")
LocList.Add("one")
LocList.Add("")
LocList.Add("two")
LocList.Add("three")

how to check the loclist(0) and loclist(2) is empty or not

Posted 29-Jan-15 23:03pm

smksamy

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2 solutions

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/\jmot · Answer 1 · 2015-01-29T23:09:00

Solution 1

try..

VB

For Each str As String In LocList
        If (String.IsNullOrEmpty(str)) Then
            MessageBox.Show('empty')
        End If
    Next

Without ForEach loop..
try

VB

if LocList.Length>=1 then ' checking length of the list
      If (String.IsNullOrEmpty(list.Item(0))) Then
            MessageBox.Show('empty')
      End If

End If

Posted 29-Jan-15 23:09pm

/\jmot

Updated 29-Jan-15 23:20pm

v3

Comments

smksamy 30-Jan-15 5:13am

hai, thanks for your response, do you have any idea without foreach, for example predefined list functions, check the list with index value that is empty or not,

if(listName.function(0)=="")then

/\jmot 30-Jan-15 5:20am

Answer updated.See now.

Peter Leow · Answer 2 · 2015-01-29T23:15:00

Solution 2

Try this:

VB

If LocList.Item(0) = String.Empty Then
    'do something
End if

Posted 29-Jan-15 23:15pm

Peter Leow

Comments

smksamy 30-Jan-15 5:34am

superb man its working awesome