If i load xml datatype column to a datatable then can i perform xml query on it? SQL server supports queries like .exist, .value on xml columns. I am trying those kind of queries on datatable.
Below is a part of code which shows where i am getting error.
In the above code error comes like "The expression contains undefined function call UserApproval.exist()." for the line bs.Filter = "[UserApproval].exist ('/Root/Row[User=''xyz'']') =1" .
If i use .value function then error will come as "The expression contains undefined function call UserApproval.value()."
But the same functions works in SQL query for sql server.
Below is a part of code which shows where i am getting error.
Code:
Private Sub Button15_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button15.Click
Dim timDiff As Double
Dim iter1 As Integer
TextBox1.Text &= Button15.Text & vbNewLine & " Iterations: " & TextBox2.Text & vbNewLine
timDiff = DateAndTime.Timer
Dim SqlAdapter As New SqlDataAdapter
Dim strTemp As String
Dim iRow As Integer
Dim rConn As New SqlConnection("data source=pc91\sqlexpress;user id=admin;password=abc;initial catalog=Checklists;connect timeout=2000;")
rConn.Open()
SqlAdapter = New SqlDataAdapter
sDataSet = New DataSet
sqldatatable = Nothing
SqlAdapter.SelectCommand = New SqlCommand("select * from DesignChanges", rConn)
SqlAdapter.Fill(sDataSet, "tmpTable")
sqldatatable = sDataSet.Tables("tmpTable")
For iter1 = 1 To Val(TextBox2.Text)
Try
For iRow = 0 To sqldatatable.Rows.Count - 1
strTemp = sqldatatable.Rows(iRow).Item("AllotedTo").ToString
Next iRow
Catch ex As Exception
MsgBox(ex.ToString & Space(10) & Err.Description)
End Try
Next
rConn.Close()
SqlAdapter.Dispose()
rConn.Dispose()
sDataSet = Nothing
SqlAdapter = Nothing
rConn = Nothing
timDiff = DateAndTime.Timer - timDiff
TextBox1.Text &= " Total Time Taken: " & timDiff & vbNewLine
End Sub
Private Sub Button17_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button17.Click
bs.DataSource = sqldatatable
DataGridView1.DataSource = bs
End Sub
Private Sub Button18_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button18.Click
bs.Filter = "[UserApproval].exist ('/Root/Row[User=''xyz'']') =1"
End Sub
End ClassIf i use .value function then error will come as "The expression contains undefined function call UserApproval.value()."
But the same functions works in SQL query for sql server.