adding column to datatable

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1.00/5 (2 votes)

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C#

on adding new column to DataTable my previous column data are deleted

Posted 26-Nov-13 0:08am

Member 10385375

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OriginalGriff · Answer 1 · 2013-11-26T00:11:00

Solution 1

At a guess, don't use MyDataTable.Columns.Clear() before you add a new column...

Posted 26-Nov-13 0:11am

OriginalGriff

Comments

satyaanupama 26-Nov-13 6:15am

i think its correct........

Karthik_Mahalingam · Answer 2 · 2013-11-26T00:39:00

Solution 4

try this sample..

C#

DataTable dt = new DataTable();
               dt.Columns.Add("amount",typeof(double));

               dt.Rows.Add(123456789);
               dt.Rows.Add(3434);
               dt.Rows.Add(656565665);

               dt.Columns.Add("newcolumn", typeof(string));

Posted 26-Nov-13 0:39am

Karthik_Mahalingam

Brijesh Kr · Answer 3 · 2013-11-26T00:18:00

Solution 3

use below:
DataTable dt = new DataTable();
DataRow row = dt.NewRow();
row[0] = "value";
row[1] = "value";
dt.Rows.Add(row);

Posted 26-Nov-13 0:18am

Brijesh Kr

Comments

OriginalGriff 26-Nov-13 6:34am

Reason for my vote of one: Please read the question carefully before answering.
"on adding new **column** to DataTable my previous **column** data are deleted"
Your code has nothing whatsoever to do with columns, it adds a row...