how to remove first drop down selected value in next row sam

Question

how to remove first dropdown selected value in next row same drop down in grid view asp.net c# please answer

Madan Shekar · Answer

html code select id = "select1" name = "indication_subject[]" > option value = "" selected = "selected" > a option > option > Accounting option > option > Afrikaans option > option > Applied Information and Communication Technology option > option > Arabic option > option > Art and Design option > option > Biology option > option > Business Studies option > select > select id = "select2" name = "indication_subject[]" > option value = "" selected = "selected" > a option > option > Accounting option > option > Afrikaans option > option > Applied Information and Communication Technology option > option > Arabic option > option > Art and Design option > option > Biology option > option > Business Studies option > select > Javascript function preventDupes( select, index ) { var options = select.options, len = options.length; while ( len-- ) { options[ len ].disabled = false ; } select.options[ index ].disabled = true ; if ( index === select.selectedIndex ) { alert( 'You\'ve already selected the item "' + select.options[index].text + '".

Please choose another.' ); this .selectedIndex = 0; } } var select1 = select = document.getElementById( 'select1' ); var select2 = select = document.getElementById( 'select2' ); select1.onchange = function () { preventDupes.call( this , select2, this .selectedIndex ); }; select2.onchange = function () { preventDupes.call( this , select1, this .selectedIndex ); }; for more info refer this http://jsfiddle.net/x4E5Q/1/