Category: unpublished

dynamic code generation in c#

Copied directly from Given a Dictionary<string, string>, convert that dictionary into a type in as performant a manner as possible. The conversion will happen many time, and first time costs are acceptable. public static Func<Dictionary<string, string>, T> Generate<T>() where T : new() { var dic = Expression.Parameter(typeof (Dictionary<string, string>), “dic”); var tmpVal = Expression.Parameter(typeof (string), “tmp”); var args =… Read more →

Python decorators (from

If you are not into long explanations, see Paolo Bergantino’s answer. Decorator Basics Python’s functions are objects To understand decorators, you must first understand that functions are objects in Python. This has important consequences. Let’s see why with a simple example : def shout(word=”yes”): return word.capitalize()+”!” print shout() # outputs : ‘Yes!’ # As an object, you can assign the… Read more →

Convert Html to Tiff

using System; using System.Collections.Generic; using System.Diagnostics; using System.Drawing; using System.Drawing.Imaging; using System.IO; using System.Linq; using System.Text; using System.Windows; using System.Windows.Forms; using System.Windows.Media.Imaging; class Program { private static WebBrowser InitialiseBrowser(string source) { // create a hidden web browser, which will navigate to the page WebBrowser browser = new WebBrowser(); browser.ScrollBarsEnabled = false; // we don’t want scrollbars on our image browser.ScriptErrorsSuppressed… Read more →

How to run code from sql server in c#

How to run code from sql server in c# SqlCommand cmd = new SqlCommand(“select Developer from Stackoverflow where UserID=’786′ and Developer=’Sufiyan'”, con); if (con.State == ConnectionState.Closed) { con.Open(); } SqlDataReader reader = cmd.ExecuteReader(); if (reader.Read()) { string codeSnippet = reader[“CodeSnippet”].ToString(); dynamic script = CSScript.LoadCode(@” using System; using System.Windows.Forms; using System.Collections.Generic; using System.Data; using System.Windows.Forms; using System.Data.SqlClient; public class RunFromSqlServer {… Read more →