Solved

C# (in memory table

Posted on 2010-08-21
3
544 Views
Last Modified: 2013-12-17
what is the meaning of these two lines:
DataTable x = new DataTable();
x.Columns.Add("Code", typeof(int));

I mean conceptually what are they doing (especially in a windows applications). I would like special description of pupose of second line.
0
Comment
Question by:vivekj2004
  • 2
3 Comments
 
LVL 10

Expert Comment

by:Jini Jose
ID: 33491709
DataTable x = new DataTable(); =  you are creating a table. it is not a database table.

x.Columns.Add("Code", typeof(int)); =  you are adding a column of type int to the table x.


below the code is for adding some values to it

DataRow dr=x.NewRow();
dr["Code"]="1"
dt.Rows.Add(dt)



0
 

Author Comment

by:vivekj2004
ID: 33491873
if there is no second parameter there e.g.,:
 
       x.Columns.Add("val");
 does this mean that the column type will be string?
0
 
LVL 10

Accepted Solution

by:
Jini Jose earned 500 total points
ID: 33491876
yes, by deafult the column type should be string.
0

Featured Post

3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The canonical version of this article is on my web site here: http://iconoun.com/articles/collisions/ A companion presentation is available here: http://iconoun.com/articles/collisions/Unicode_Presentation.pdf
Entering time in Microsoft Access can be difficult. An input mask often bothers users more than helping them and won't catch all typing errors. This article shows how to create a textbox for 24-hour time input with full validation politely catching …
The viewer will learn how to use a discrete random variable to simulate the return on an investment over a period of years, create a Monte Carlo simulation using the discrete random variable, and create a graph to represent the possible returns over…
The viewer will learn how to create two correlated normally distributed random variables in Excel, use a normal distribution to simulate the return on different levels of investment in each of the two funds over a period of ten years, and, create a …

803 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question