Skip to main content

How to make Custom webserver control in

How to make custom server control in
First draw picture of the custom server control in mind, after make custom control. Suppose we have a picture and we want to make server control of that picture.
Follow some steps for creating custom server control in

Step-1 : Open visual studio
Step-2:  Goto file-->new-->project-->select web in left pane-->select server control in middle pane
Step-3:  Write name of your project as 'customserver_control' and click on 'ok' button
Step-4:  After click on ok button you can see 'ServerControl1.cs' file is appear
Step-5:  Change  c# file name as 'customtextbutton' control
Step-6:  Remove this code, which is mentioned below from your c# file

        public string Text
                String s = (String)ViewState["Text"];
                return ((s == null)? "[" + this.ID + "]" : s);

                ViewState["Text"] = value;

        protected override void RenderContents(HtmlTextWriter output)

Step-7: Replace your code with mentioned below code.
[ToolboxData("<{0}:customtextbutton runat=server></{0}:customtextbutton>")]
Note: class name or tag name are same

Step-8: Design CreateChildControls() override method in the class with some statements, which is mentioned below.
Step-9: Now,Your code look like

Label l1:
        TextBox User_txt;
Label l1;

protected override void CreateChildControls()
                l1=new Label();
                l1.ID = "label1";
                l1.Text = "User_Name";
                User_txt = new TextBox();
                User_txt.ID = "usrtxt";
                User_txt.Text = string.Empty;


Step-11: Take override  Render(HtmlTextWriter writer) method  for rendering the object onto the browser
Step-12: write this code inside this method
protected override void Render(HtmlTextWriter writer)


Step-13: Build this project

Now how to use .dll or .exe file in your web application

Step-1: click file-->new-->project-->selct web in left pane--> web form
Step-2: Right click on tool box and choose new item
Step-3: Browser your project .dll file and add your control onto your toolbox.


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 …