LINQ: Cannot implicitly convert type 'System.Collections.Generic.IEnumerable' to 'int'

Question

I get an error from the following code:

int dreamX[];

private void Form1_Load(object sender, EventArgs e)
{ 
    sumX();
}

private void sumX()
{
    for (v         


        

Answer 1

What you want is this:

int[] dreamX;
private void Form1_Load(object sender, EventArgs e)
        { 
         sumX();
        }
 private void sumX()
        {
                dreamX =( from Control control in Controls                  
                         where control.GetType() == typeof(TextBox) &&
                               control.Name.StartsWith("box")
                         select Convert.ToInt32(((TextBox)control).Text))
                                       .ToArray();             
        }

The from clause produces a IEnumerable collection. You can convert this to an array with the .ToArray() extension