How set datacolumn.expression of concat of different columns in datatable?

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I need to concat the value of different columns to a single column in the same datatable.

but some column cell value is null. In that case this is not working.

Any idea?

What I have tried:

I have tried the below
DataColumn totalColumn = new DataColumn();
totalColumn.DataType = System.Type.GetType("System.Object");
totalColumn.ColumnName = "FullString";

totalColumn.Expression ="COLUMN1+COLUMN2".

it works if all the cell contains data.

but if any cell went to null this will not work.

Posted 1-Mar-16 18:42pm

Indukanth

Updated 1-Mar-16 20:46pm

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Sinisa Hajnal 2-Mar-16 2:23am

Ensure that during binding you don't have nulls, have defaults instead.

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Parveen Siwach · Accepted Answer · 2016-03-01T20:46:00

Solution 1

You can use the below code to resolve your problem:

C#

totalColumn.Expression = "ISNULL(COLUMN1, '')+ISNULL(COLUMN2, '')";

Thanks,

Posted 1-Mar-16 20:46pm

Parveen Siwach

Comments

Indukanth 2-Mar-16 4:45am

thankyouu.. :)