Question

I’m just reading some LINQ for dummies stuff and I got a question. Here is the code:

private void btnTest_Click(object sender, EventArgs e)
{
    // Create an array as a data source.
    String[] QueryString = { “One”, “Two”, “Three”, “Four”, “Five” };

    // Define the query.
    var ThisQuery = from StringValue in QueryString 
                    where StringValue.Length > 3
                    select StringValue + “\r\n”;

    // Display the result.
    foreach (var ThisValue in ThisQuery)
        txtResult.Text = txtResult.Text + ThisValue;
}

What is txtResult, will it work without a declaration?

Answer 1

txtresult is the value of Name Property of used TextBox control in this code. You need to add a TextBox in your application and assign it Name property value ‘txtresult’ for this code to work.