how can remove the column name in datatable

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Hi friends,

The below code is for setting column header for a new datatable.one time it is worked.but in second time The same column header appeared in the datatable. so it makes error. I want to refresh the table every time i executed this method. how can delete the column header.

C#

public DataTable setgrid(DataTable studlist,DataTable subjectlist,business.Commonpropertis comp)
        {
            string marktype1 = "Internal Mark";
            string marktype2 = "External Mark";
            string divide="|";
            DataTable grid = null;
            grid = new DataTable();
           
            for (int i = 0; i < studlist.Columns.Count; i++)
            {
                grid.Columns.Add(studlist.Columns["AdmissionNumber"].ColumnName.ToString());
                grid.Columns.Add(studlist.Columns["RollNumber"].ColumnName.ToString());
                grid.Columns.Add(studlist.Columns["Name"].ColumnName.ToString());

            }

Posted 1-Oct-13 2:11am

baskaran chellasamy

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Comments

ZurdoDev 1-Oct-13 8:13am

You are already creating a new DataTable each time setgrid is called. Your problem is you are looping and adding columns. Why are you doing that?

baskaran chellasamy 1-Oct-13 8:31am

because whenever execute this method i add extra column based on the dynamic situation. but this three column are fixed. in a second time i execute the this method it return an error that specify Above three column is added already.so that i need to refresh this table in every execution.

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contracting1990 · Answer 1 · 2013-10-01T02:15:00

Solution 1

You don't need a loop just create the columns once.

Posted 1-Oct-13 2:15am

contracting1990

Comments

baskaran chellasamy 1-Oct-13 8:35am

then how do i skip the loop after first time. i dont know how to skip, because it is the column header name.

[no name] 1-Oct-13 8:40am

break;

baskaran chellasamy 1-Oct-13 8:45am

In a second parameter subjectlist will be changing dynamically. so i need the add the subjectlist for the column header dynamically. for that i need to refresh the datatable based on the situation. i think it is better every time when i execute method i want to refresh datatable and also delete the column name is also.