How to rename the datatable column name without losing the data?

Question

Q:

I want to rename my data table column names .

I tried this :

dt.Columns[8].ColumnName = \"regnum\";

dt.AcceptChanges();

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Answer 1

dt.Columns[8].ColumnName = "regnum";

This just binds your Columns[8] to the non-existing "regnum" column in the Db.

If you want to rename the actuals Db column, execute an SQL script.

But my guess is you actually want to change the Caption:

  dt.Columns[8].Caption = "regnum";