How do I use trim for datagrid in C#?

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VS2017

Hello,

I am getting an

'object' does not contain a definition for 'Trim' and no extension method 'Trim' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?)

error on this line:

SourcePageFile = SourceFolder + "\\pg-" + Convert.ToDecimal(DataGridView1.Rows[irow].Cells[0].Value.Trim(' ')) - 1 + ".jpg";

It is a converted code from Visual Basic that goes like this:

SourcePageFile = SourceFolder & "\pg-" & CInt(Trim(DataGridView1.Rows(irow).Cells(0).Value)) - 1 & ".jpg"

How do I successfully execute the syntax to get rid of this error?

Please help.

Regards
Aman Chaurasia

What I have tried:

I have tried the following:

SourcePageFile = SourceFolder + "\\pg-" + Convert.ToDecimal(DataGridView1.Rows[irow].Cells[0].Value.Trim(' ')) - 1 + ".jpg"

SourcePageFile = SourceFolder + "\\pg-" + Convert.ToInt32(DataGridView1.Rows[irow].Cells[0].Value.Trim(' ')) - 1 + ".jpg"

SourcePageFile = SourceFolder + "\\pg-" + Convert.ToUInt32(DataGridView1.Rows[irow].Cells[0].Value.Trim(' ')) - 1 + ".jpg"

SourcePageFile = SourceFolder + "\\pg-" + Convert.ToString(DataGridView1.Rows[irow].Cells[0].Value.Trim(' ')) - 1 + ".jpg"

Posted 16-May-18 0:06am

Primo Chalice

Updated 16-May-18 0:43am

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F-ES Sitecore · Accepted Answer · 2018-05-16T00:44:00

You can only "Trim" on a string variable, the error you are getting suggested that "Value" is an object. How you deal with this depends on what is in the cell. The solution might be

SourcePageFile = SourceFolder + "\\pg-" + Convert.ToDecimal(DataGridView1.Rows[irow].Cells[0].Value.ToString().Trim(' ')) - 1 + ".jpg"

or

SourcePageFile = SourceFolder + "\\pg-" + Convert.ToDecimal(((string)DataGridView1.Rows[irow].Cells[0].Value).Trim(' ')) - 1 + ".jpg"

Also converting to decimal isn't the same as converting to int which is what the original did. Your code is also very fragile and prone to throwing an exception if values are not what you expect. You should use int.TryParse rather than Convert.ToDecimal. Google for usage.