Database table Update via datatable

[semicolon]

Hello i have a database table

| col1 | col2 | col3 | col4 | col5 |
|  val |  val |  val |  val |  val |
|  val |  val |  val |  val |  val |
|  val |  val |  val |  val |  val |
|  val |  val |  val |  val |  val |
|  val |  val |  val |  val |  val |
|  val |  val |  val |  val |  val |
|  val |  val |  val |  val |  val |

and a datatable

| col1 | col2 | col3 | 
|  val |  val |  val |  
|  val |  val |  val | 
|  val |  val |  val | 
|  val |  val |  val | 
|  val |  val |  val |

I want to update just the col1 col2 and col3 in database table via datatable
how can i do this? thank you

[AnnieCalvert]

To update a DataSet and send those updates back to the database, follow these steps:

Open Microsoft Visual Studio .NET.
Create a new Console Application in Visual Basic .NET. By default, Visual Studio creates a Static Module and an empty Main() procedure.
Make sure that the project contains a reference to the System and System.Data namespaces. Use the Imports statement on the System, SystemData, and System.Data.SqlClient namespaces

[ome2012]

use for loop and select only those columns that you want to update..... ^_^

[semicolon]

i don't want to use loop. its so heavy for the computer to work for large amount of data
I have a datagrid view that when you change the first column data like for example

|col1 |col2 |col3 |col4|
|  1  |  5  |  9  | 13 |
|  2  |  610 | 14 |
|  3  |  7  |  11 | 15 |
|  4  |  8  |  12 | 16 |

// when i edit col1 row 3 other columns will adjust
// like it will increment by 1


|col1 |col2 |col3 |col4|
|  1  |  6  |  10 | 14 |
|  2  |  7  |  11 | 15 |
|  4  |  8  |  12 | 16 |
|  5  |  9  |  13 | 17 |

so every data is being updated.
col1,col2,col3,col4 are save in one column in my database table column Qnty
if i use loop it is to slow.