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Add Control Dynamically To Grid in WPF Using C#

- February 13, 2012

To add a child control to a Grid Layout, simply call the Add() method in Children of the grid control. Label lbl = new Label(); lbl.Content = "1" ; grdClock.Children.Add(lbl); Where: grdClock is the Grid control

SQL Retrieve Or Count Record On A Previous Date In MySQL

- January 26, 2012

Here's a simple demonstration of sql in MySQL where you can retrieve a record from a previous date. select sum (data_gathered) as data_gatherer, name from tblctivity where name like '%prgGatherer1.xml%' and (date(rec_date) = (CURDATE() - 1));

How To Check Nulls In MySQL Database Table

- January 03, 2012

Assuming QuantityPerUnit is the field to be tested. -- return products with no null values select * from products where QuantityPerUnit is not null ; -- return products with null values select * from products where isnull (QuantityPerUnit);

Using Microsoft.VisualBasic DateDiff() Function In Your C# Program

- December 05, 2011

Below is a snippet on how to use the Microsoft.VisualBasic DateDiff() Function in your C# program. Add the Microsoft.VisualBasic reference to your project so that you can access it's underlying classes and methods. long age = Microsoft.VisualBasic.DateAndTime.DateDiff( "yyyy" ,Convert.ToDateTime( "1985-04-04" ),DateTime.Now);

How To Decode An Encoded URL In C#.NET

- November 21, 2011

The code below illustrates how to decode an encoded url using HttpUtility.UrlDecode(string url) using System.Web; //make sure to add reference to System.Web string temp_url = "http%3a%2f%2fplacement.emploiquebec.net%2f" + "mbe%2fut%2fsuivroffrs%2fapercoffr.asp" + "%3fnooffr%3d3053675%26page%3drech%26prov% 3derechroffr%252Easp%26CL%3denglish "; string url = HttpUtility.UrlDecode(temp_url);

Read Or Parse XML Using XmlElement Class, XPath And XmlNodelist In C#

- November 09, 2011

Sample xml file: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 <?xml version="1.0" encoding="UTF-8"?> <jobs> <job> <title> Payroll Analyst </title> <description> <summary> Seeking Payroll Analyst specialists. Great benefits and competitive salary. Must meet all requirements to be considered for assignment. </summary> </description> <location> <state> Pennsylvenia </state> </location> </job> <job /> </jobs> Code: 1 2 3 4 5 6 7 8 9 10 11 ListingSource = webclient.DownloadString( "your_xmlurl" ); StringReader readString = new System.IOStringReader(ListingSource); XmlDocument awesome = new XmlDocument(); awesome.Load(readString); XmlNodeList nodeList = awesome.SelectNodes( "//jobs/job" ); foreach (XmlElement element in nodeList) { title = elem

(502)Bad Gateway Returned From HttpWebRequest In C#

- October 26, 2011

The solutions is to set the default proxy for the web request and assign user agent to it as shown below: ListURL = String.Format( "your_xml_feed_or_API_url_sample" ); HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(ListURL); request.Timeout = 900000000; request.Proxy = HttpWebRequest.DefaultWebProxy; request.UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)" ; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream dataStream = response.GetResponseStream(); dataStream = response.GetResponseStream(); StreamReader reader = new StreamReader(dataStream); ListingSource = reader.ReadToEnd(); ListingSource = System.Web.HttpUtility.HtmlDecode(ListingSource); Cheers!

Invalid Expanded Name In LINQ to XML

- October 25, 2011

Assuming I am reading this xml file using XLINQ. I encountered an error that says invalid expanded name. As i go through this xml file, i found a node images that contains element tags. The parent node is also an element tag. Since i don't use the images tag, I simply remove it using string manipulations. Below is the xml file and the solution: <element> <id> 2768687195 </id> <title> Customer Service Representative </title> <body> Do you dream of being your own boss and choosing the work you do, when you work and who you work for? </body> <url> http://jobs.myjob.careercenter-servicecrew.html </url> <category> <id> job/customer_service </id> <name> Customer Service & Call Center Jobs </name> </category> <source> <id> www </id>

How To Read Or Parse XML Using LINQ And XLinq In C#

- October 13, 2011

Hello, Here's an example on how to read or parse XML file using LINQ and XLINQ in C#. XML Content: <item> <title> Labor Warehouse Associates - Boston, Massachusetts </title> <link> http//www.BostonRecruiter.com/job_display.php?alpha=17343491 </link> <description> Hudson Group is the #1 airport retailer operating in over 400 retail locations in most major airports, throughout the US and Canada. While we are comprised of many </description> <guid> http//www.BostonRecruiter.com/job_display.php?alpha=17343491 </guid> <joblocation> <jobcity> Boston </jobcity> <jobstate> Massachusetts </jobstate> <jobcountry> United States </jobcountry> </joblocation> </item> C# Code: string url = "your xml or rss link" ; string xmlsource = client.DownloadString(url);

Manipulate Object Property Using Lambda Expression In LINQ

- September 29, 2011

Here's how to manipulate or update an object property using Lambda format in LINQ. In this example, I assigned a value to the textbox control's Text property using a delegate that applies the concept of Lambda expressions in LINQ. ShowEmployeeDelegate d = () => { tMessage.Text = "Nelson" ; }; d.Invoke();

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