Simple example for who are very new to .NET Windows Forms. (Not for who know some basics)

1. Demo Projects
• Simple Calculator
• Student Progress Report
What will you learn?
• Designing simple user
• Changing properties of controls
• Writing event handler for button
• Using following controls:
o Labels
o Textboxes
o Buttons
o Group-box
Windows Forms for Beginners
Student Progress Report
ser interface
Changing properties of controls
Writing event handler for button’s click event
controls:
Bhushan Mulmule
bhushan.mulmule@gmail.com
www.dotnetvideotutorial.com
Windows Forms for Beginners
Part 1
Bhushan Mulmule
bhushan.mulmule@gmail.com
www.dotnetvideotutorial.com
Windows Forms for Beginners

2. Project 1: Basic Calculator
• Create New Windows Form Application
• Step 1: Design User Interface
• Step 2: Change Properties of labels, textboxes and buttons
• Step 3: Write Code for buttons
Step 1: Design UI as follow:
Labels
Arrange No1, No2 and
Result labels to align
right walls
Textboxes
User should not able
to type in result
textbox.
In next example to
show output we will
use labels
Buttons

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Step 2: Set properties of controls as follow:
Control Name Text Readonly
Form frmBasicCalcii Basic
Calculator
Labels No need to change
Names of labels at left
hand side
Basic
Calculator
Number 1:
Number 2:
Result:
TextBoxes txtNo1
txtNo2
txtResult True
Buttons btnPlus +
btnMinus -
btnMul *
btnDiv /
btnReset Reset
btnExit Exit
Step 3: Add event handlers for buttons
1. Double click on Plus button and code it as follow:
private void btnPlus_Click(object sender, EventArgs e)
{
int no1, no2, result;
no1 = Convert.ToInt32(txtNo1.Text);
no2 = Convert.ToInt32(txtNo2.Text);
result = no1 + no2;
txtResult.Text = result.ToString();
}
Note: Write similar code for minus, multiplication and division.

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2. Double click Reset button and write code as follow:
private void btnClear_Click(object sender, EventArgs e)
{
//txtNo1.Text = "";
txtNo1.Clear();
txtNo2.Clear();
txtResult.Clear();
txtNo1.Focus();
}
3. Double click Exit button and write code as follow:
private void btnExit_Click(object sender, EventArgs e)
{
Application.Exit();
}
4. Application is ready execute and test.
Project 2: Student Progress Report
Step 1: Design UI And Change Properties as shown in callouts
(Please use common sense☺☺☺☺)
• Change Title Label Font size property to make it large
• No need to change Name property of labels at left-hand side as not used in
code
• Change only Text property of labels as shown in image
• Change names for all textboxes as specified in callouts respectively
• Change names for Right hand side output labels for Total, Percentage,
Division and Total.
• Do not change names of left hand side total, percentage, division and total
labels
• To change looks of right hand side output labels change AutoSize: False,
BackColor: White, BorderStyle: FixedSingle, Text: Blank
• Change only Text property of Group-box.

5. 2 Textboxes
Name: txtRollNo,
txtName
5 TextBoxes:
Name: txtEng, txtMar, txtHindi,
txtMaths, txtScience
3 Buttons:
Name: btnOK, btnNew, btnExit
Text: OK, New, Exit
2 Groupbox:
Text: Scores,
Result
11 Labels:
Text: RollNo,
Name,
English,
Marathi,
Hindi, Math,
Science,
Total,
Percentage,
Division,
Result
4 Labels:
To Display output for Total, Percentage,
Division and Result use Labels.
To change looks of these four labels set
following properties:
AutoSize: False
BackColor: White
BorderStyle: FixedSingle
Text: Blank
Name: lblTotal, lblPer, lblDiv, lblResult

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Step 3: Add event handlers for buttons
• Double click on OK and code it as follow:
private void btnOK_Click(object sender, EventArgs e)
{
int m1, m2, m3, m4, m5, total;
float per;
string div="", result="";
m1 = Convert.ToInt32(txtEng.Text);
m2 = Convert.ToInt32(txtMar.Text);
m3 = Convert.ToInt32(txtHindi.Text);
m4 = Convert.ToInt32(txtSci.Text);
m5 = Convert.ToInt32(txtMth.Text);
total = m1 + m2 + m3 + m4 + m5;
per = total * 100 / 500.0f;
if (m1 >= 35 && m2 >= 35 && m3 >= 35 && m4 >= 35 && m5
>= 35)
{
result = "PASS";
if (per >= 60)
div = "I";
else if (per >= 45)
div = "II";
else
div = "III";
}
else
{
result = "FAIL";
div = "NA";
}
lblTotal.Text = total.ToString();
lblPer.Text = per.ToString();
lblResult.Text = result;
lblDiv.Text = div;
}
• Double click on New button and code it as follow:
private void btnNew_Click(object sender, EventArgs e)
{

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txtRollNo.Text = "";
txtName.Text = "";
txtEng.Text = "";
txtMar.Text = "";
txtHindi.Text = "";
txtMth.Text = "";
txtSci.Text = "";
lblTotal.Text = "";
lblPer.Text = "";
lblResult.Text = "";
lblDiv.Text = "";
txtRollNo.Focus();
}
• Exit button:
private void btnExit_Click(object sender, EventArgs e)
{
Application.Exit();
}