datatable dynamic chaning data types c#

ricardo casillas answered on December 27, 2022 Popularity 1/10 Helpfulness 1/10

answer datatable dynamic chaning data types c#

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datatable dynamic chaning data types c#

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public static class DataTableExt
{
    public static void ConvertColumnType(this DataTable dt, string columnName, Type newType)
    {
        using (DataColumn dc = new DataColumn(columnName + "_new", newType))
        {
            // Add the new column which has the new type, and move it to the ordinal of the old column
            int ordinal = dt.Columns[columnName].Ordinal;
            dt.Columns.Add(dc);
            dc.SetOrdinal(ordinal);

            // Get and convert the values of the old column, and insert them into the new
            foreach (DataRow dr in dt.Rows)
                dr[dc.ColumnName] = Convert.ChangeType(dr[columnName], newType);

            // Remove the old column
            dt.Columns.Remove(columnName);

            // Give the new column the old column's name
            dc.ColumnName = columnName;
        }
    }
}

Popularity 1/10 Helpfulness 1/10 Language csharp

Source: stackoverflow.com

Tags: c# datatable types

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Contributed on Dec 27 2022

ricardo casillas

0 Answers Avg Quality 2/10

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datatable dynamic chaning data types c#

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DataTable dtCloned = dt.Clone();
dtCloned.Columns[0].DataType = typeof(Int32);
foreach (DataRow row in dt.Rows) 
{
    dtCloned.ImportRow(row);
}

Popularity 1/10 Helpfulness 1/10 Language csharp

Source: stackoverflow.com

Tags: datatable types c#

Link to this answer
Share Copy Link

Contributed on Dec 27 2022

ricardo casillas

0 Answers Avg Quality 2/10

datatable dynamic chaning data types c#

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