Techblog

Wednesday, March 6, 2013

CSS Semi-transparent background

http://egilhansen.com/2011/10/21/css-trick-semi-transparent-css-background-works-all-browsers

Friday, July 13, 2012

Groovy: Parse through all xml files in a directory

def folder = <some folder path>

def baseDirectory = new File(folder)

def files = baseDirectory.listFiles().grep(~/.*xml$/)

for (file in files){

//Do something with the file

}

Tuesday, July 10, 2012

Installing setuptools for Python2.7 on Windows

Assuming you have python 2.7 installed in C:\Python27

Make sure your path includes C:\Python27\; and C:\Python27\Scripts\;
Download setuptools-0.6c11.tar.gz and setuptools-0.6c11-py2.7.egg from here
Extract the tar using 7zip into a folder outside C:\Python27 and copy the setuptools-0.6c11-py2.7.egg file into the extracted folder
Open command prompt, get into the extracted folder and run the command: python ez_setup.py setuptool-0.6c11-py2.7.egg

You can now install modules like suds using the command

python setup.py install

Thanks to the guys at

http://stackoverflow.com/questions/309412/how-to-setup-setuptools-for-python-2-6-on-windows

http://www.jansipke.nl/python-soap-client-with-suds/

Thursday, September 1, 2011

Passing arrays from jQuery to C# Webservice

Step 1:
Download json2.js from https://github.com/douglascrockford/JSON-js
Include in your <head>
<script type="text/javascript" src="scripts/json2.js"></script>

Step 2:
Assuming you are populating an array from a select list, create and populate an array

var Voltages = new Array();

// AddedVoltage is my select list

$("#AddedVoltage option").each(function () {
Voltages.push($(this).val());

});

Step 3:
Convert your array to a json string using json2.js
var jsonString = JSON.stringify(Voltages)

Step 4:
You can now pass the jsonString in your ajax request and recieve it as a string in your webservice.

Step 5:
Download jayrock json from http://code.google.com/p/jayrock/downloads/detail?name=jayrock-0.9.12915.zip&can=2&q= and add reference to your .net project.
More info here (http://msdn.microsoft.com/en-us/library/bb299886.aspx)

Step 6:
You can now convert the received json string in your web service to a list using

public List<String> ConvertToList(string jsonString)
    {
        List<string> SelectedVoltages = new List<string>();
        using (JsonTextReader reader = new JsonTextReader(new StringReader(jsonString)))
        {
            while (reader.Read())
            {
                if (reader.TokenClass == JsonTokenClass.String)
                {
                    SelectedVoltages.Add(reader.Token.Text);
                }
            }
        }
        return SelectedVoltages;
    }

Wednesday, August 24, 2011

jQuery access textbox within GridView

If you want to access the textbox in the gridview example below, use

$("table[id*=ResultGridView] input[type=text][id*=date]")

<asp:GridView ID="ResultGridView" runat="server" OnRowDataBound="ResultGridView_RowDataBound">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox ID="date" runat="server"></asp:TextBox>dd/MM/yyyy </ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>

Auto-resize textbox

Facebook like textboxes

Download this jquery plugin
http://james.padolsey.com/demos/plugins/jQuery/autoresize.jquery.js

Then apply this for your textbox

$('textarea#comment').autoResize({
    // On resize:
    onResize : function() {
        $(this).css({opacity:0.8});
    },
    // After resize:
    animateCallback : function() {
        $(this).css({opacity:1});
    },
    // Quite slow animation:
    animateDuration : 300,
    // More extra space:
    extraSpace : 40
});

Tuesday, August 9, 2011

ASP.net Submit does not work on enter press

Submit button wont get fired on press of Enter button on IE

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