How to concatenate % symbol to Datatable column(int)

Question

1.00/5 (1 vote)

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Hi All,

I have a Datatable with values like

SQL

ID              PercentofSales
1                 0
2                 25
3                 50
4                 75

This is wat i do :

VB

For Each dr As DataRow In m_dtPercentofSales.Rows
           Me.cmbPercentofSales.Items.Add(dr("PercentofSales"))
       Next

But how do i append % symbol to the PercentofSales column. I can add the % to the SQL Table by making the column Datatype as Varchar but i dont want to do that. Please help.

Thanks.

Posted 8-Jul-13 3:06am

vidkaat

Updated 8-Jul-13 3:22am

gvprabu

v3

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Comments

Zoltán Zörgő 8-Jul-13 9:11am

You should add this formatting on presentation level and not in the DAL level.

2 solutions

Solution 1

Try this

C#

foreach (DataRow row in MyDataTable.Rows)
{
 row["columnNameHere" Or index] = value;
}

Hope this helps

Posted 8-Jul-13 3:12am

Jameel VM

Comments

vidkaat 8-Jul-13 9:20am

But i need to concatenate the symbol % to the column. How do i do this?

Jameel VM 8-Jul-13 9:25am

you should concatenate the % with that particular column like row["columnNameHere" Or index] = "%"+ row["columnNameHere"]

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gvprabu · Accepted Answer · 2013-07-08T03:21:00

Solution 2

Hi,

Could you make this in your Query like this....

SQL

SELECT ID, CAST(PercentofSales AS VARCHAR(10))+'%' AS PercentofSales FROM yourtable

Regards,
GVPrabu

Posted 8-Jul-13 3:21am

gvprabu

Updated 8-Jul-13 3:22am

v2

Comments

vidkaat 8-Jul-13 9:27am

Thank you so much.

gvprabu 8-Jul-13 9:33am

welcome

Maciej Los 8-Jul-13 9:48am

+5

gvprabu 8-Jul-13 9:50am

thank u yar....

Zoltán Zörgő 8-Jul-13 14:05pm

Your answer is technically correct. But you have confirmed a bad practice.

gvprabu 9-Jul-13 5:36am

hi... please let me know the bad thing in this, then its help full for me.

Zoltán Zörgő 9-Jul-13 9:06am

It is simply bad practice: making a value "percent" is a matter of presentation, it should be at the end of the line. By adding the "%" sign, you make it string. Thus you loose any chance (well, not any) to process the data afterwards.

gvprabu 9-Jul-13 9:21am

ya correct, Like this changes we can do in front end. If I knows 100% I am not going to do any calculations then I can use this conversion right.