c# - How to validate a column in an editable datatable? -

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am using editable html datatable on asp.net web page .which this, enter image description here

how add validation on column target, receive float values.?

function (for enable edit):

function editrow(otable, nrow) {   var adata = otable.fngetdata(nrow);   var jqtds = $('>td', nrow);   jqtds[0].innerhtml = adata[0];   jqtds[1].innerhtml = adata[1];   jqtds[2].innerhtml = '<input type="text" id="float" class="form-control" value="' + adata[2] + '">';    jqtds[3].innerhtml = '<a class="save-row" href="">save</a>';   jqtds[4].innerhtml = '<a class="cancel-row" href="">cancel</a>';      }

i tried add keypress event on textbox , not working.!

$('#float').keypress(function (event) {            if ((event.which != 46 || $(this).val().indexof('.') != -1) && (event.which < 48 || event.which > 57) && (event.which != 8)) {                event.preventdefault();            }        });

am new jquery please me solve ?





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