Skip to main content

Image Control in WPF

An image can be shown using Microsoft photo viewer, Microsoft Paint or any photo viewing software in windows operating system. But in programming we have to create that from the drawing. If we want to show existing picture then we have to use an in-built control i.e. image control.

Image control is used to display an existing image in WPF programming. The image may be of type bmp, gif, jpg and etc. I have copied an image in my project’s root directory and show that using the below line of code:


<Image Name="imageControl">
<Image.Source>wall.jpg</Image.Source>
</Image>

When we run this project it will show a window containing the image like below:

WPF image control without width and height

It will cover all the space provided by default. We can fix this image to the specified location of the fix height and width. The following code will change it of height 200 and width 200.
<Image Name="imageControl" >
<Image.Source>wall.jpg</Image.Source>
<Image.Height>200</Image.Height>
<Image.Width>200</Image.Width>
</Image>

It will show the small image in compare to the above.

WPF image control with height and width

The control have all the common properties except some special e.g.
  • SnapsToDevicePixels: whether this control should use device-pixels settings.
  • Source: get or set the image source for the image.
  • Stretch: how an image should be stretched e.g. fill, none, uniform and etc.
  • StretchDirection: specifies the direction of stretch i.e. up, down or both.
It have much more methods and events as like other controls. The above line of code can also be written in the c# language in code behind file:
Image imageControl = new Image();
imageControl.Source = new BitmapImage(new Uri("wall.jpg",UriKind.Relative));
imageControl.Height = 200;
imageControl.Width = 200;

It will show the same image as in above XAML code with width and height specified.

Comments

Popular posts from this blog

difference between structure and union in C Language

In c language article we will see the difference between union and structure. Both are the user define datatype in c language. See the table which is mentioned below: ASP.NET Video Tutorial Series Structure Union1.The keywordstruct is used to define a structure 1. The keyword union is used to define a union. 2. When a variable is associated with a structure, the compiler allocates the memory for each member. The size of structure is greater than or equal to the sum ofsizes of its members. The smaller members may end with unused slack bytes. 2. When a variable is associated with a union, thecompiler allocates thememory by considering the size of the largest memory. So, size of union is equal to the size of largest member. 3. Each member within a structure is assigned unique storage area of location. 3. Memory allocated is shared by individual members of union. 4. The address of each member will be in ascending order This indicates that memory for each member will start at different offset v…

Difference between Linear search and Binary Search in c language

SQL Video Channel : Download all SQL Video



Binary Search Linear Search Works only on sorted items. such as  1,2,3,4,5,6  etc
Works on sorted as well as unsorted items. 12,4,5,3,2,1 etc Very efficient if the items are sorted Very efficient if the items are less and present in the beginning of the list. such as Suppose your list items are : 12,3,4,5,1 and you want to search 12 number then you get beginning in the list. Works well with arrays and not on linked lists. Works with arrays and linked lists.
Number of comparisons are less More number of comparisons are required if the items are present in the later part of the array or its elements are more.

Memory representation of Linked List Data Structures in C Language

Memory representation of Linked List

             In memory the linked list is stored in scattered cells (locations).The memory for each node is allocated dynamically means as and when required. So the Linked List can increase as per the user wish and the size is not fixed, it can vary.

               Suppose first node of linked list is allocated with an address 1008. Its graphical representation looks like the figure shown below:


      Suppose next node is allocated at an address 506, so the list becomes,



  Suppose next node is allocated with an address with an address 10,s the list become,


The other way to represent the linked list is as shown below:




 In the above representation the data stored in the linked list is “INDIA”, the information part of each node contains one character. The external pointer root points to first node’s address 1005. The link part of the node containing information I contains 1007, the address of next node. The last node …