New to Asp.Net Need connecting string and Add 2 values

Question

Sir,

I am new to asp.net i have installed visual studio community 2022 i want to know how to add 2 values and display the output, i need step procedure. please guide me

Answer 1

Hi @Mohamed Rafi N ,
The type of textBox1.Text is string and cannot be directly equal to int type.
If you use addition, you need to use the Convert.ToInt32 method to convert the specified value to a 32-bit signed integer.
If you have other questions, please click comment.

Best regards,
Lan Huang

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Answer 2

i have converted into string to integer then also it is not working

int a, b, c;
Convert.ToInt32(this.textBox1.Text);
Convert.ToInt32(this.textBox2.Text);
a = textBox1.Text;
b = textBox2.Text;
c = a + b;
textBox3.Text = c;

Answer 3

The syntax is...

int a, b, c;  
a = Convert.ToInt32(this.textBox1.Text);  
b = Convert.ToInt32(this.textBox2.Text);  
c = a + b;  
textBox3.Text = c.ToString();  

Reference documentation.
Convert.ToInt32 Method

I recommend int.TryParse().