I am trying a "very" simple task to output values of each rows from a DataSet
:
for ($i=0;$i -le $ds.Tables[1].Rows.Count;$i++)
{
Write-Host 'value is : ' + $i + ' ' + $ds.Tables[1].Rows[$i][0]
}
gives output ...
value is : +0+ +System.Data.DataSet.Tables[1].Rows[0][0]
value is : +1+ +System.Data.DataSet.Tables[1].Rows[1][0]
value is : +2+ +System.Data.DataSet.Tables[1].Rows[2][0]
value is : +3+ +System.Data.DataSet.Tables[1].Rows[3][0]
value is : +4+ +System.Data.DataSet.Tables[1].Rows[4][0]
value is : +5+ +System.Data.DataSet.Tables[1].Rows[5][0]
value is : +6+ +System.Data.DataSet.Tables[1].Rows[6][0]
How do i get the actual value from the column?
This question is related to
powershell
dataset
loops
The parser is having trouble concatenating your string. Try this:
write-host 'value is : '$i' '$($ds.Tables[1].Rows[$i][0])
Edit: Using double quotes might also be clearer since you can include the expressions within the quoted string:
write-host "value is : $i $($ds.Tables[1].Rows[$i][0])"
Here's a practical example (build a dataset from your current location):
$ds = new-object System.Data.DataSet
$ds.Tables.Add("tblTest")
[void]$ds.Tables["tblTest"].Columns.Add("Name",[string])
[void]$ds.Tables["tblTest"].Columns.Add("Path",[string])
dir | foreach {
$dr = $ds.Tables["tblTest"].NewRow()
$dr["Name"] = $_.name
$dr["Path"] = $_.fullname
$ds.Tables["tblTest"].Rows.Add($dr)
}
$ds.Tables["tblTest"]
$ds.Tables["tblTest"]
is an object that you can manipulate just like any other Powershell object:
$ds.Tables["tblTest"] | foreach {
write-host 'Name value is : $_.name
write-host 'Path value is : $_.path
}
Source: Stackoverflow.com