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();

but my data is lost after that !!

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";

Answer 2

Following is the example:

DataTable Dt = new DataTable();
DataColumn Dc = new DataColumn("Name");
DataColumn Dc1 = new DataColumn("ID");
Dt.Columns.Add(Dc);
Dt.Columns.Add(Dc1);

DataRow dr = Dt.NewRow();
dr["name"] = "1";
dr["ID"] = "111";
Dt.Rows.Add(dr);

dr = Dt.NewRow();
dr["name"] = "2";
dr["ID"] = "11112";
Dt.Rows.Add(dr);

Dt.Columns[0].ColumnName = "ddsxsd";
Dt.AcceptChanges();

I did not find any data loss!!!!!!!! Because it will merely change the column name.

EDIT

You can also bring your desired column names from your Stored Procedures.