unable to get column Index to remove the column from data Table1.9

ManoRama

hai to all,
here my requirement is removing a column from data table using drag and drop on treeview ;i am unable to get the column Index here;please guide me how to acheive this;If i need any api's guide me how to add it;here is my code:



@import "../DataTabels/demo_table.css";










debugger;
$(document).ready(function () {
$(".treeNode").draggable({ helper: 'clone' });
$("#droppable").droppable({
drop: function (event, ui) {
var columnName = $(ui.draggable).text();
var mytable = $("#sampleTable").dataTable(),
iter = 0;
//adding dragged treeview Node as column in data table
mytable.find('tr').each(function () {
var trow = $(this);
if (trow.index() === 0) {
trow.append('' + columnName + '');
}
else if (trow.index() >= 1) {
trow.append(' Acer ');
}
iter += 1;
});
var oTable = $("#sampleTable").dataTable();
oTable.fnDestroy();
//displaying Data
$("#sampleTable").dataTable();

}
});

});

$(document).ready(function () {
$("#sampleTable tr ").draggable({
cursor: 'move',
stack: $('#TreeviewDiv')
});

$("#TreeviewDiv").droppable({
drop: function (event, ui) {

var oTable = $("#sampleTable").dataTable();
//when i dropped on treeview Data Table column has to be delete.
//getting position of column
var aPos = oTable.fnGetPosition(this);
// var aPos = oTable.fnGetPosition($("thead tr").index(this));
$.fn.removeCol = function (col) {
if (!col) { col = 1; }
$('tr td:nth-child(' + col + '), tr th:nth-child(' + col + ')', this).remove();
return this;
};
$('#sampleTable').removeCol(aPos);
}
});
});
























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