ListItems added using Js gets cleared on Page load?

**sudhaMurugesan** · Oct 10 '07, 11:01 AM

Originally posted by dmjpro

What do you mean by this "During PageLoad this degree is null"?
Please Clarify me here.
And post your "PageLoad" function.
Let me have a look here.

Debasis Jana

I myself confused a lot. I dont know what was happening. I give you my whole code sir. you please check where i am wrong.But please give me some time to explain u what i'm really doing. Is it Time up for you now and I too have got only 15 mins.

**dmjpro** · Oct 10 '07, 11:13 AM

Originally posted by sudhaMurugesan

I myself confused a lot. I dont know what was happening. I give you my whole code sir. you please check where i am wrong.But please give me some time to explain u what i'm really doing. Is it Time up for you now and I too have got only 15 mins.

Right now I am getting confused.
Can't you make me clear?
Actually why "degree" Select Box is null initially?
And you populate the "major" Select Box when you change first one, right?
oh.....I am now getting confused.
Tell me actual scenario and paste the Generated HTML and whole JavaScript.
So that I can have a look at this and make me understand myself.

Debasis Jana

**sudhaMurugesan** · Oct 11 '07, 03:51 AM

Originally posted by dmjpro

Right now I am getting confused.
Can't you make me clear?
Actually why "degree" Select Box is null initially?
And you populate the "major" Select Box when you change first one, right?
oh.....I am now getting confused.
Tell me actual scenario and paste the Generated HTML and whole JavaScript.
So that I can have a look at this and make me understand myself.

Debasis Jana

Now I will tell u clearly ok.
Degrees[B.A/B.E] Majors for B.A[English,History] for B.E[ECE,EEE,IT]
Now if i Select B.A in degree select box, the Majors for B.A gets binded in Major selectbox dynamically using javascript. Now If i select English as Major and click Save button, the Value English is not carried to Server side[C#.net] where i save the value to database . Some of my colleagues saying me to capture the value in hidden fields and then pass to server side. I know that this is not effective.In generated Html also the major's selected value is 0 having text "--Select--". I will Paste the Generated HTML code also. I value ur suggestion more.

Thank U.

**sudhaMurugesan** · Oct 11 '07, 05:12 AM

Originally posted by dmjpro

Right now I am getting confused.
Can't you make me clear?
Actually why "degree" Select Box is null initially?
And you populate the "major" Select Box when you change first one, right?
oh.....I am now getting confused.
Tell me actual scenario and paste the Generated HTML and whole JavaScript.
So that I can have a look at this and make me understand myself.

Debasis Jana

My Generated HTML Code

Code:

 <tr>
        <td>
            <span id="ctl00_ContentPlaceHolder1_Label66">Qualification Level</span></td>
        <td>
            <select name="ctl00$ContentPlaceHolder1$ddlQualification" id="ctl00_ContentPlaceHolder1_ddlQualification" onchange="HideQualification();getQualification();" style="width:71%;">
	<option selected="selected" value="0">---Select---</option>
	<option value="38">SSLC</option>
	<option value="39">HSC</option>
	<option value="40">ITI</option>
	<option value="41">DIPLOMA</option>
	<option value="42">NON-ENGG GRADUATE</option>
	<option value="44">ENGG GRADUATE</option>

</select>
            <span id="ctl00_ContentPlaceHolder1_Label28" class="ErrorText">*</span></td>
        <td >
            <div id="ctl00_ContentPlaceHolder1_DivlblInstitute"><span id="ctl00_ContentPlaceHolder1_lblInstitute">Institute :</span>&nbsp;</div> </td>
        <td >
           <div id="ctl00_ContentPlaceHolder1_DivtxtInstitute"> <input name="ctl00$ContentPlaceHolder1$txtInstitute" type="text" id="ctl00_ContentPlaceHolder1_txtInstitute" onkeypress="FilterChracterInputs();" style="width:160px;" />
               <span id="ctl00_ContentPlaceHolder1_Label9" class="ErrorText">*</span></div> </td>
    </tr>
     <tr id="ctl00_ContentPlaceHolder1_trdegree">
	<td>
            <span id="ctl00_ContentPlaceHolder1_lblDegree">Degree</span></td>
	<td><select name="ctl00$ContentPlaceHolder1$ddlDegree" id="ctl00_ContentPlaceHolder1_ddlDegree" onchange="Major();" style="width:71%;">
		<option selected="selected" value="0">----Select----</option>

	</select>
            <span id="ctl00_ContentPlaceHolder1_Label19" class="ErrorText">*</span></td>
	<td>
            <span id="ctl00_ContentPlaceHolder1_lblMajor">Major</span></td>
	<td>            <select name="ctl00$ContentPlaceHolder1$ddlMajor" id="ctl00_ContentPlaceHolder1_ddlMajor" style="width:87%;">
		<option value="0">----Select----</option>

	</select>
            <span id="ctl00_ContentPlaceHolder1_Label16" class="ErrorText">*</span></td>
</tr>
//javascript
function getQualification()
{
    var e = document.getElementById ("ctl00_ContentPlaceHolder1_ddlQualification");
 var qualification = e.options[e.selectedIndex].text;[B] // eg. ENGG GRADUATE[/B]
    if(e.selectedIndex != 0)
    {
    AjaxWebService.GetDegree(qualification,OnGetDegree);   //Returns Items[n]
    }
}
function OnGetDegree(Items)
{ 
[B]//Items[0] = "44,B.E/B.Tech"[/B]
var degri = document.getElementById ("ctl00_ContentPlaceHolder1_ddlDegree");
var length = degri.options.length;
if(degri.options.length > 0)
{
degri.options.length = 0;
//    var count=0;
//    for ( ; count < e.options.length ;)
//    {  
//    e.remove(count);
//    count = 0;
//    }
}
var o = document.createElement("option");
o.text = "----Select----";
o.value = 0;
degri.add(o);
for(i=0;i<Items.length;i++)
{
var options = Items[i].split(",");
var o = document.createElement("option");
o.text = options[1]; // "B.E/B.Tech"
o.value = options[0]; // "44 "
degri.add(o);
}

}
function Major()
{
var deg = document.getElementById ("ctl00_ContentPlaceHolder1_ddlDegree");

 if(deg.selectedIndex != 0)
    {
    AjaxWebService.GetMajor(deg.options[deg.selectedIndex].value,OnGetMajor);       
    }
    
}
function OnGetMajor(Items)
{
[B]//Items[0] = "2,ECE"  Items[1] = "3,EEE"[/B]
var major = document.getElementById ("ctl00_ContentPlaceHolder1_ddlMajor");
if(major.options.length > 0)
{
major.options.length = 0;// to remove previously binded items
}
var o = document.createElement("option");
o.text = "----Select----";
o.value = 0;
major.add(o);
for(i=0;i<Items.length;i++)
{
var options = Items[i].split(",");
var o = document.createElement("option");
o.text = options[1];
o.value = options[0];
major.add(o);
}
}

**dmjpro** · Oct 11 '07, 05:27 AM

Now tell me Sudha.......... ...
You don't want to get the Degree List blank initially?
Then you can send me your Server Side Script.
As .Net & J2eeis almost same.
So I can have a look at this.
Don't you have any "<body onload="some_fu nc()">"?
Please let me all these things and send me the Server Side Script.

Debasis Jana.

**sudhaMurugesan** · Oct 11 '07, 05:31 AM

Originally posted by dmjpro

Now tell me Sudha.......... ...
You don't want to get the Degree List blank initially?
Then you can send me your Server Side Script.
As .Net & J2eeis almost same.
So I can have a look at this.
Don't you have any "<body onload="some_fu nc()">"?
Please let me all these things and send me the Server Side Script.

Debasis Jana.

How to send it is 950 lines. I tried thro' gmail but failed

Code:

<script type="text/javascript" language="javascript">
//These js Functions gets called on load
  HideESI()
  HideOldBank()
  HideforDL()
  HideQualification()
  HideExperience()
  Major()
   </script>

**dmjpro** · Oct 11 '07, 05:42 AM

Originally posted by sudhaMurugesan

How to send it is 950 lines. I tried thro' gmail but failed

Code:

<script type="text/javascript" language="javascript">
//These js Functions gets called on load
  HideESI()
  HideOldBank()
  HideforDL()
  HideQualification()
  HideExperience()
  Major()
   </script>

There you can't figure Out.?

Debasis Jana

**sudhaMurugesan** · Oct 11 '07, 05:46 AM

Originally posted by dmjpro

There you can't figure Out.?

Debasis Jana

Its getting delayed. I try with hidden fields atlast.I knowyou tried to help me a lot.But sorry i am unable to provide you with proper Inputs.sorry frnd.

**dmjpro** · Oct 11 '07, 05:55 AM

Originally posted by sudhaMurugesan

Its getting delayed. I try with hidden fields atlast.I knowyou tried to help me a lot.But sorry i am unable to provide you with proper Inputs.sorry frnd.

Best of Luck with that.

Debasis Jana

**sudhaMurugesan** · Oct 11 '07, 07:00 AM

Originally posted by dmjpro

Best of Luck with that.

Debasis Jana

hello Jana,
My tries all failed.Hidden field is also failed becoz' on Bodyload call to AjaxWebservice fails . so My select box filled with no options. only this options value i am storing in hidfield which thro's error : option is null. So I finally decided to do it on Server Side. I am very bad in understanding the control flow which swallowed all my time. OK Jana check your PM.

**dmjpro** · Oct 11 '07, 08:05 AM

Originally posted by sudhaMurugesan

hello Jana,
My tries all failed.Hidden field is also failed becoz' on Bodyload call to AjaxWebservice fails . so My select box filled with no options. only this options value i am storing in hidfield which thro's error : option is null. So I finally decided to do it on Server Side. I am very bad in understanding the control flow which swallowed all my time. OK Jana check your PM.

So your Problem is with Ajax Call.

Debasis Jana

ListItems added using Js gets cleared on Page load?

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