Question

I have a combo box, which has got some values, also I have some few values, I select one value from combo box and do some manipulation and come back with the value selected (set these values in session). Now I need to automatically select the value which are in session in the combo box.

I have followed the below JavaScript and it works fine but it creates a duplicate value which is already in the combo box:

function addCombo() {
    var reportID = '<%=reportid%>';
    var reportName = '<%=reportname%>';

    var textb = document.getElementById("reportnames");

    var option = document.createElement("option");
    option.text = reportName;
    option.value = reportID;
    option.selected='selected';
    try {
        textb.add(option, null); //Standard
    }catch(error) {
        textb.add(option); // IE only
    }
    textb.value = "";
}

Could anyone help me to identify?

Answer 1

I have not removed the value rather i added the following code, it solved me the problem.

function addCombo() {
    var reportID = '<%=reportid%>';
    var options= document.getElementById('reportnames').options;
    for (var i= 0, n= options.length; i < n ; i++) {
        if (options[i].value==reportID) {
            document.getElementById("reportnames").selectedIndex = i;
            break;
        }
    }
}