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cascading dropdown

Posted on 2010-09-23
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Medium Priority
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Last Modified: 2013-11-07
Hi experts,
I have a three cascading dropdowns for Coutry,State and City.
This works very well.
What I am trying to do is,
When 'Admin' is viewing a records of the user,those dropdowns shows values entered previously(That's done)
When normal user is viewing this form,I want to show data in readonly form,I tried to disable the dropdowns
 but it is not working.Those dropdowns should be disabled but should have value from database.

These dropdowns get data from web service.

Your help is really appreciated.
Thanks
0
Comment
Question by:johny_bravo1
  • 3
  • 2
6 Comments
 
LVL 5

Accepted Solution

by:
tvPrasad earned 1500 total points
ID: 33743709
Make Dropdowns readonly for normal users. Here is how...

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<HTML lang="en">
<HEAD>
<TITLE>HTML</title>
<META http-equiv="Content-Type" content="text/html; charset=utf-8">
<STYLE type="text/css">
<!--
.greyed {
color: #999999;
}
-->
</STYLE>
<SCRIPT language=JavaScript type=text/javascript>
<!--
function freezeList(whichList){
var chosen=whichList.options.selectedIndex;
whichList.onchange=function(){
whichList.options.selectedIndex=chosen;
}
whichList.className="greyed";
}
//-->
</SCRIPT>
</HEAD>
<BODY>

<FORM name="myForm">
<DIV>
<SELECT name="readList" readonly>
<OPTION>Red</OPTION>
<OPTION>Green</OPTION>
<OPTION>Blue</OPTION>
<OPTION>Yellow</OPTION>
</SELECT>
<INPUT type="button" value="Freeze The List" onclick="freezeList(this.form.readList)">
</DIV>
</FORM>

</BODY>
</HTML>
0
 
LVL 10

Expert Comment

by:Umar Topia
ID: 33743725
You can use dropdown variable object name
ddlTest.Enabled = false;
0
 
LVL 5

Expert Comment

by:tvPrasad
ID: 33743753
By definition, a dropdown is always READONLY.
By definition, a dropdown DISABLED is not sent via FORM SUBMIT.

If you are allowing multiple then you use below technique
----------------------------------------------------------------------------------------
<FORM name="myForm" method="post">
 <SELECT name="readList[]" multiple readonly onmouseover="freezeList(this.form.elements['readList[]'])">
 <OPTION value="Red">Red</OPTION>
 <OPTION value="Green" selected>Green</OPTION>
 <OPTION value="Blue">Blue</OPTION>
 <OPTION value="Yellow" selected>Yellow</OPTION>
 </SELECT>
 <INPUT type="submit" value="SUBMIT">
 <input type="button" value="freeze" />
 </FORM>

Hope this helps!!!
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LVL 8

Author Comment

by:johny_bravo1
ID: 33743973
umartopia:
.Enabled = false don't work.It doesn't load any values then

tvPrasad:
I don't understand what you are trying to tell. sorry :)


I am posting some code.Please see.

<asp:DropDownList ID="ddlLocalCountry" runat="server" Width="130px" CssClass="inputtext">
            </asp:DropDownList>
            <cc1:CascadingDropDown ID="CDDddlLocalCountry" runat="server" Category="Country"
                TargetControlID="ddlLocalCountry" PromptText="[Select Country]" LoadingText="Loading countries..."
                ServicePath="~/HR/cascadingdataservice.asmx" ServiceMethod="GetDropDownCountries">
            </cc1:CascadingDropDown>



 <asp:DropDownList ID="ddlLocalState" onchange="ShowStateDiv()" runat="server" Width="100px" CssClass="inputtext">
                        </asp:DropDownList>
                        <cc1:CascadingDropDown ID="CDDddlLocalState" runat="server" Category="State" TargetControlID="ddlLocalState"
                            ParentControlID="ddlLocalCountry" PromptText="[Select State]" LoadingText="Loading states..."
                            ServicePath="~/HR/cascadingdataservice.asmx" ServiceMethod="GetDropDownStates">
                        </cc1:CascadingDropDown>


  <asp:DropDownList ID="ddlLocalCity" onchange="ShowOtherCity()" runat="server" Width="100px" CssClass="inputtext">
                        </asp:DropDownList>
 <cc1:CascadingDropDown ID="CDDddlLocalCity" runat="server" Category="City" TargetControlID="ddlLocalCity"
                    ParentControlID="ddlLocalState" PromptText="[Select City]" PromptValue="0" LoadingText="Loading cities..."
                    ServicePath="~/HR/cascadingdataservice.asmx" ServiceMethod="GetDropDownCities">
                </cc1:CascadingDropDown>

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0
 
LVL 8

Author Comment

by:johny_bravo1
ID: 33754957
HI experts,pls give me some idea.I am lost
0
 
LVL 8

Author Closing Comment

by:johny_bravo1
ID: 33901510
not the exact solution but around there
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