[RESOLVED] For loop replace item in data table

Hello people I have made a data-table that contains 20 different columns.
I use my data-table to put the SQL Query results.

My issue is... I need to clean/clear items from my data-table while the for loop is running.

in this case below I want to update the data-table if the certain item column 18 does not contain "Language" replace with "0"

here is my code:

Code:

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If HashDatatable1.Rows.Count > 0 Then
            For i As Integer = 0 To HashDatatable1.Rows.Count - 1

                If Not HashDatatable1.Rows(i).Item(18).ToString.Contains("Language:") Then

                End If

            Next
        End If

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Could someone help me?

Thank you in advance

already solved by myself..

Code:

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        For Each dc As DataColumn In HashDatatable1.Columns
            dc.ReadOnly = False
        Next

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also

Code:

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 If HashDatatable1.Rows.Count > 0 Then
            For i As Integer = 0 To HashDatatable1.Rows.Count - 1
                If Not HashDatatable1.Rows(i).Item(18).ToString.Contains("Language:") Then
                    HashDatatable1.Rows(i)(18) = "0"
                End If

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