c# - Returning a list of cells if the previous column is checked in a DatagridView -

i've checked different codes i'm not able make effective use. i'm trying check value in 1st column boolean, if column checked need data in second column displayed in text/list box (if multiple boxes checked).

this how looks

                datatable dt = new datatable();                 dt.columns.add("methods",system.type.gettype("system.string"));                 dt.columns.add("select", system.type.gettype("system.boolean"));                 datarow dr = null;                    foreach (datagridviewrow row in datagridview1.rows)             {                //get appropriate cell using index, name or whatever , cast datagridviewcheckboxcell                datagridviewcheckboxcell cell = row.cells["select"] datagridviewcheckboxcell;                 //compare true value because value isn't boolean                if (cell.value == cell.truevalue)                {                    listboxtemp.datasource = cell.value.tostring().tolist();                }                   //the value true             } 

so each selection made respective string in 'methods' has returned

thanks in advance

use row.cells["methods"] other adjacent cell in row. can insert new list or else within foreach loop.

ie. modifying existing code...

listbox listboxtemp = new listbox(); foreach (datagridviewrow row in datagridview1.rows) {     datagridviewcheckboxcell cell = row.cells["select"] datagridviewcheckboxcell;     if (cell.value == cell.truevalue)     {         listboxtemp.add(row.cells["methods"].value.tostring());     } } 

you can stop , later resume painting of listbox if you're iterating through large amount of rows. refer msdn example of this.