Create a C# Windows Desktop program that uses an array to store month

Ayşıl Yilmaz

Create a C# Windows Desktop program that uses an array to store monthly average temperatures as well as the yearly monthly average, monthly average low temperature, and monthly average high temperature.

Validate the numeric input to make sure it is numeric

4 Replies

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Željko Perić5y ago
Accepted answer
Hello https://www.c-sharpcorner.com/members/ay%C5%9F%C4%B1l-yilmaz,

If You want to to be sure that user has entered number,
read article at this link :

https://docs.microsoft.com/en-us/dotnet/api/system.double.tryparse?view=net-5.0#System_Double_TryParse_System_String_System_Double__

There is also good example.

Here is article that could help in solving Your task :

https://1bestcsharp.blogspot.com/2014/12/c-how-to-export-datagridview-data-to.html

All the best,
Željko Peric
+1
Sachin Singh5y ago
To make sure user entered data is Numeric follow below code
private void textBox1_TextChanged(object sender, EventArgs e)
{
    if (System.Text.RegularExpressions.Regex.IsMatch(textBox1.Text, "[^0-9]"))
    {
        MessageBox.Show("Please enter only numbers.");
        textBox1.Text = textBox1.Text.Remove(textBox1.Text.Length - 1);
    }
}
+1
Ayşıl Yilmaz5y ago
because i don't know how to, if it is easy can you help me? Im just not sure how to validate the input to make sure it is numeric
+1
Mario Scheeren5y ago
NIce homework - why don't you try to solve it by yourself? It is really easy!
+2