Skip to main content

How to use font dialog in winforms c#

Font dialog is used for changing the font style of the text. In font style there are many attributes available like font face, font color, font size etc. Now, if you want to use font dialog in windows form then simple drag a font dialog control from the tool box and drop into your form page also set some required properties , OK lets take an simple example, in this we take some control on windows form and change their font attribute through font dialog. follow my steps for using font dialog control.



Step-1 : Add one rich textBox and Button control on the form.
Step-2 : Raise click event on button control.
Step-3 : Copy this code and paste into your button control event handler.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication11
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            FontDialog ftdlg = new FontDialog();
            ftdlg.ShowColor = true;
            if (ftdlg.ShowDialog ()==DialogResult.OK & !String.IsNullOrEmpty(richTextBox1.Text))
            {
                richTextBox1.SelectionFont = ftdlg.Font;
                richTextBox1.SelectionColor = ftdlg.Color;
            }
        }
    }
}

Now code generate the following output












In this example, first line in event handler define, first to create instance of font dialog, font dialog control doesn't show color in it bydefault so you can change property of it using set ShowColor is true, which is define in second line. In third line we are checking that font dialog is open also return true, when we press OK button. 
Note : Third line also check that 'text' must be selected in rich textBox
 After setting the attribute you can assign attribute to selected text, which is define in fifth and sixth line in the code

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 …