How to bind to a parent DataContext WPF

WPF > RelativeSource

IsEnabled="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Path=DataContext.IsAPGCSourceFitted}"

Day VB.Net Example

VB.NET > Functions > Day

Day returns the day of the month as an integer between 1 and 31.

Example


Dim today As Integer = Microsoft.VisualBasic.DateAndTime.Day(Now)

C# Regex to match the words with dot

C# > Text > Regular Expressions > Split with dot


 string[] substrings = Regex.Split("test.regex.dot", @"\.");

Remove border Telerik RadGridView

Telerik > RadGridView > Remove border

radGridView1.GridViewElement.DrawBorder = false;

radGridView1.GridViewElement.GroupPanelElement.DrawBorder = false;

KeyNotFoundException Collection C# Example

Collections > Generic > KeyNotFoundException 

This is thrown when try to retrieve an element from a collection using a key that does not exist in that collection.

Example

   Dictionary<string, string> dict = new Dictionary<string, string>();

   dict.Add("key1","value1");

   try

   {

       string val = dict["key2"];

   }

   catch (KeyNotFoundException)

   {

       throw new KeyNotFoundException("KeyNotFoundException!");

   }

Print PictureBox Image C# Example Using PrintDocument

C# > Print  > PrintDocument

PrintDocument sends out to the printer.


Example

Print image

using System;

using System.Drawing;

using System.Windows.Forms;

namespace WindowsFormsApplication1

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            printPreviewDialog1.Document = printDocument1;

            printPreviewDialog1.ShowDialog();

        }

        private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)

        {

            e.Graphics.DrawImage(pictureBox1.Image, 100, 100, 700, 600);
        }
    }
}

System tables SQL Server

SQL Server > System tables

• sysobjects