Question

I have a DataGridView that I want to query using Linq (C# WinForm). I want to ‘count’ rows where a certain criteria is met. For example,

variable1 = 'count rows where ColumnBoxAge > 3 || < 5'  label1.Text = variable1 

How to do this in C# WinForm using Linq?

Answer 1

I don’t know if it could work but you can try this;

dataSet.Tables[0].AsEnumerable().Where(c => c.Field<int>('ageColumn') > 3 ||      c.Field<int>('ageColumn') < 5).Count(); 

Edit : Where instead of Select.