Why do we use only the special symbol ‘*’ in select statemen

Question

Recently one of my friend was asked an interesting question in an interview …

“Why do we use only the special symbol ‘*’ in select statement ??”

“We have lot many special symbols in the key board … then why to use only * ?? is there any special reason ??”

Can anyone answer this question please?

Answer 1

Just so you know, you should never loop through to build strings, they are immutable and this gets very costly. Use: StringBuilder sb = new StringBuilder(); foreach(Control co in r.Cells[2].Controls) { if (co.GetType() == typeof(Checkbox)) sb.Append((Checkbox)co).Checked.ToString()+"\n"; } string output = sb.ToString();

Answer 2

foreach(Control co in r.Cells[2].Controls) { if (co.GetType().Name.ToString() == "Checkbox") TextBox1.Text+= ((Checkbox)co).Checked.ToString()+"\n"; }

Answer 3

Always the same...you post a question then work it out!! the answer was to use the uniqueid of the control and then use findcontrol to return it. Also needed to cast the control etc. now it all works and heres the code foreach(Control co in r.Cells[2].Controls) { CheckBox cb=(CheckBox)this.FindControl(co.UniqueID); TextBox1.Text=TextBox1.Text+cb.Checked.ToString()+"\n"; }