how to validate both check box and textbox field

[madhuriks]

hi,
i created one jsp page..in it i used check boxes as well as textboxes..i need to check both the check boxes and textboxes..i tried it but it is validating only the check box not the textbox..here is the code can anyone help me out...

login.jsp

<td><font color="#800000" size=""><b>Low-Bal</b></font></td>
                        <td><input type="checkbox" name="balrdys" value="F,">Fresh A/c <input type="text" name="balrdys" size="1"><br>
                            <input type="checkbox" name="balrdys" value="A,">Renewal   <input type="text" name="balrdys" size="1"><br>
                            <input type="checkbox" name="balrdys" value="NO">No<br>
                        <td></td>

login.js--javascript code

var chkBalrdays = document.getElementsByName('balrdys');
    var hasBalrdaysChecked = false;
    for (var j = 0; j < chkBalrdays.length; j++)
    {
        if (chkBalrdays[j].checked)
        {
            hasBalrdaysChecked = true;
            if (document.frm.balrdys.value == "")
            {
                alert("Enter Bal-R-Days");
                document.frm.balrdys.focus();
                return (false);
            }
            break;
        }
    }
    if (!hasBalrdaysChecked)
    {
        alert("Please select at least one Low BalRDays");
        return false;
    }

Thanx in advance,
nd waiting for the reply
madhu.

[Dormilich]

that’s because text boxes do not have a checked property, which is evaluated as false.

[madhuriks]

hi,
i didnt get your point...i changed the following in javascript..eve nthough i m not getting...can u tell where to modify to get validated.

var chkBalrdays = document.getElementsByName('balrdys');
    var hasBalrdaysChecked = false;
    for (var j = 0; j < chkBalrdays.length; j++)
    {
        if (chkBalrdays[j].checked)
        {
            hasBalrdaysChecked = true;
            break;
        }
    }
    if (!hasBalrdaysChecked)
    {
        alert("Please select at least one Low BalRDays");
        return false;
    }
    if (document.frm.balrdys.value == ""){
        alert("Enter Balance");
        document.frm.balrdys.focus()
        return (false);
    }

Thanx,
madhu

[Dormilich]

this time it’s different. as demo do

alert(document.frm.balrdys.value);

it should give you [object HTMLCollection]. such an object (to be more precise, this is a kind of Array) doesn’t have a value property. thus it should always enter the condition’s statement.

my recommendation: use a different name for the checkboxes and the textboxes, so you can loop over each of them separately.

[madhuriks]

this time it’s different. as demo do

alert(document.frm.balrdys.value);

it should give you [object HTMLCollection]. such an object (to be more precise, this is a kind of Array) doesn’t have a value property. thus it should always enter the condition’s statement.

my recommendation: use a different name for the checkboxes and the textboxes, so you can loop over each of them separately.

hi,
i changed my code as follows...the problem is it is not checking the checkboxes..it is only taking text boxes...im not getting where the problem occurs..here is the code...

login.jsp

<td>
    <input type="checkbox" name="balrdys" value="F,"id="chkA">Fresh Activation 
    <input type="text" name="balrdys" size="1" id="txtA"/><br>

    <input type="checkbox" name="balrdys" value=":A,">Auto-Renewal   
    <input type="text" name="balrdys" size="1"><br>

    <input type="checkbox" name="balrdys" value="NO">No<br>
</td>

login.js

if(document.getElementById('chkA').checked) {
        var txt = document.getElementById('txtA');
        if(txt.value.length == 0) {
            window.alert("Enter Renewal Balance");
            txt.focus();
            return false;
        }
    }

Thanks,
madhu

[Dormilich]

what is not checking the checkboxes?

[madhuriks]

what is not checking the checkboxes?

i need if any checkbox and textbox left blank before submitting the form..it should show an alert and if i leave checkbox and enter the textbox value..it is taking..but it should not take..it has to take both the checkbox and textbox value..if i left any thing..it should show an alert that 'Select checkbox'..

[Dormilich]

ok, I see the problem is the logic behind the validation.

let’s design a programme:

try to word your requirements in short sentences (there’s no limit how many you need). do not try to pack too much info in one. you do not even need to have the correct sequence.

next, try to translate each sentence into code.

if you have no idea how to break a sentence into code, break the sentence into smaller parts until you find a way to put it in code. if that’s not possible, you need to find another way to express the sentence.

adjust the HTML code to your needs.

[madhuriks]

hi,
i got it...i had another doubt that the output should come like 'F,10:'..but i m getting as 'F,10'..i tried so many times..i m not getting can u suggest me where the code gets wrong...here i m sending jsp code,javascript code and servelet code..can u check it..i m waiting for the reply...

login.jsp

<td><font color="#800000" size=""><b>Low-Bal-RDays</b></font></td>
                        <td><input type="checkbox" name="balrdys" value="F,"id="chkA">Fresh Activation <input type="text" name="balrdys" size="1" id="txtA"/><br>
                            <input type="checkbox" name="balrdys" value="A,">Auto-Renewal   <input type="text" name="balrdys" size="1"><br>
                            <input type="checkbox" name="balrdys" value="NO">No<br>
                        <td></td>

login.js

if(document.getElementById('chkA').checked) {
        var txt = document.getElementById('txtA');
        if(txt.value.length == 0) {
            window.alert("Enter Fresh Activation Days");
            txt.focus();
            return false;
        }
    }

login.java

// Getting Balance Retrieval Days
        String[] balrdys = request.getParameterValues("balrdys");
        String balrdysStr = "";
        for (int i = 0; i < balrdys.length; i++) {
            if (balrdysStr == null) {
                balrdysStr += balrdys[i];
            } else {
                balrdysStr += balrdys[i];
            }
        }

Thanks and waiting for the reply,
madhu

[Dormilich]

you have to ask in the Java forum, since I don’t know how Java processes form input.

[madhuriks]

you have to ask in the Java forum, since I don’t know how Java processes form input.

k..thanx..

[madhuriks]

you have to ask in the Java forum, since I don’t know how Java processes form input.

hi,
First of all I thank u that this site helps me a lot..in clarifying my doubts..in my jsp page..if i click one check box..remaining checkbox should be disabled...can u suggest me how to do it..

[Dormilich]

if you want only one of the boxes checked, use radio buttons with a common name.

[madhuriks]

if you want only one of the boxes checked, use radio buttons with a common name.

hi gud mrng,
i can use radio buttons but the problem is in my project somes times more than 2 check boxes should be selected..so i had used checkboxes instead of radio buttons can u tell me how to do if one check box is selected remaining should get disabled...

[Dormilich]

can u tell me how to do if one check box is selected remaining should get disabled...

use radio buttons in this particular case.