Member Avatar for sharma_vivek82

hi, i am very new in python. can anyone tell me that how to create dynamic dropdown box in python scripting.(triple dropdown box)

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  • 4 Replies
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  • Latest Post Latest Post by vegaseat

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Member Avatar for Ene Uran

What GUI library are you using? I am a little familiar with Tkinter and wxPython and might be able to help. There are others I am not familiar with.

Member Avatar for sharma_vivek82

i am working in ubuntu linux. and using python 2.4.2.

Member Avatar for sharma_vivek82

simple code for creating dropdown box using javascript.
the html code for this, is

<html>
<head>
<title></title>
<script language="javascript" src="list.js"></script>
</head>

<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#800080" alink="#ff0000" onload="fillCategory();">

<FORM name="drop_list"  >
		
<SELECT  NAME="Category" onChange="SelectDistrict();" >
<Option value="">States</option>
</SELECT>&nbsp;
<SELECT id="District" NAME="District" onChange="SelectCollege();">
<Option value="">Districts</option>

</SELECT>
<SELECT id="College" NAME="College">
<Option value="">College</option>
</SELECT>
<input type="button" name="go" value="Value Selected"
onclick="alert(document.drop_list.College.options[document.drop_list.College.selectedIndex].value);">
</form>

</body>

</html>

here i am calling javascript writen in another file list.js. The content of list.js is following

function fillCategory(){ 

 // this function is used to fill the category list on load

addOption(document.drop_list.Category, "Karnataka", "Karnataka", "");

addOption(document.drop_list.Category, "Jharkhand", "Jharkhand", "");

addOption(document.drop_list.Category, "Hariyana", "Hariyana", "");

}


function SelectDistrict(){

// ON selection of category this function will work


removeAllOptions(document.drop_list.District);
addOption(document.drop_list.District, "", "District", "");


if(document.drop_list.Category.value == 'Karnataka'){
addOption(document.drop_list.District,"Bangalore", "Bangalore");
addOption(document.drop_list.District,"Kolar", "Kolar");
addOption(document.drop_list.District,"Hubali", "Hubali");
}
if(document.drop_list.Category.value == 'Jharkhand'){
addOption(document.drop_list.District,"Ranchi", "Ranchi");
addOption(document.drop_list.District,"Jamshedpur", "Jamshedpur");
addOption(document.drop_list.District,"Hazbagh", "Hazbagh", "");
}
if(document.drop_list.Category.value == 'Hariyana'){
addOption(document.drop_list.District,"Noida", "Noida");
addOption(document.drop_list.District,"Gurgaon", "Gurgaon");
addOption(document.drop_list.District,"Panipat", "Panipat");
}

}

function SelectCollege(){

// ON selection of District this function will work


removeAllOptions(document.drop_list.College);
addOption(document.drop_list.College, "", "College", "");


if(document.drop_list.District.value == 'Bangalore'){
addOption(document.drop_list.College,"BIT Bangalore", "BIT Bangalore");
addOption(document.drop_list.College,"MVIT Bangalore", "MVIT Bangalore");
}
if(document.drop_list.District.value == 'Kolar'){
addOption(document.drop_list.College,"BIT Kolar", "BIT Kolar");
addOption(document.drop_list.College,"BIT Kolar", "BIT Kolar");
}
if(document.drop_list.District.value == 'Hubali'){
addOption(document.drop_list.College,"YMCA", "YMCA");
addOption(document.drop_list.College,"IIT", "IIT");
}
if(document.drop_list.District.value == 'Ranchi'){
addOption(document.drop_list.College,"ZXA", "ZXA");
addOption(document.drop_list.College,"DSA", "DSA");
}
if(document.drop_list.District.value == 'Jamshedpur'){
addOption(document.drop_list.College,"QWE", "QWE");
addOption(document.drop_list.College,"ZXC", "ZXC");
}
if(document.drop_list.District.value == 'Hazbagh'){
addOption(document.drop_list.College,"ZDC", "ZDC");
addOption(document.drop_list.College,"FGV", "FGV");
}
if(document.drop_list.District.value == 'Noida'){
addOption(document.drop_list.College,"uio", "uio");
addOption(document.drop_list.College,"klj", "klj");
}
if(document.drop_list.District.value == 'Gurgaon'){
addOption(document.drop_list.College,"yhn", "yhn");
addOption(document.drop_list.College,"fgh", "fgh");
}
if(document.drop_list.District.value == 'Panipat'){
addOption(document.drop_list.College,"olm", "olm");
addOption(document.drop_list.College,"bnm", "bnm");
}
}
////////////////// 



function removeAllOptions(selectbox)

{

	var i;

	for(i=selectbox.options.length-1;i>=0;i--)

	{

		//selectbox.options.remove(i);

		selectbox.remove(i);

	}

}





function addOption(selectbox, value, text )

{

	var optn = document.createElement("OPTION");

	optn.text = text;

	optn.value = value;



	selectbox.options.add(optn);

}

this is very simple to understand it.
If any one have code to create dropdown box in Python script plz send me....

Edit: Added code tags vegaseat

Member Avatar for vegaseat

Here is an example using wxPython. Once you have Python installed you need to download wxPython appropriate for your system and Python version, it's free!

# the wxChoice() widget, a simple dropdown box
# wx.Choice(parent, id, pos, size, choices, style)
# tested with Python24 and wxPython26
# should work on Windows, Linux, and Unix systems

import wx

class MyFrame(wx.Frame):
    """ class MyFrame inherits wxFrame, uses default ID of -1"""
    def __init__(self ):
        wx.Frame.__init__(self, None, -1, 'wxChoice test', size=(300, 150))

        colorList = ['red', 'green', 'blue', 'yellow','white']
        # create the dropdown box
        self.choice1 = wx.Choice(self, -1, choices=colorList)
        # select item 1 = 'green' to show
        self.choice1.SetSelection(1)
        # set focus to receive optional keyboard input
        # eg. type r for red, y for yellow
        self.choice1.SetFocus()
        # new event handler wxPython version 2.5 and higher
        self.choice1.Bind(wx.EVT_CHOICE, self.onChoice)
        
    def onChoice(self, event):
        '''get the slected color choice'''
        self.color = self.choice1.GetStringSelection()
        self.SetTitle(self.color)  # test
        

# this is only a small application
application = wx.PySimpleApp()
# call class MyFrame
frame1 = MyFrame()
# show the frame
frame1.Show(True)
# start the event loop
application.MainLoop()
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