C#

using System.Collections; // this line at top of file

ArrayList ccList=new ArrayList();
ccList.Add("friend@company.com");
mail.CC(ccList);

I have so many client side validations and same controls r used in .cs file.
if i use javascript asp controls doesnt supprot.

Using view state can i validate on client side....

as he loads the page.

<br />
private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e)<br />
        {<br />
            if ( ((DataGridView)sender).CurrentCell == null ) return;<br />
            if (((DataGridView)sender).CurrentCell.Value == null) return;<br />
<br />
            string str = ((DataGridView)sender).CurrentCell.Value.ToString();<br />
            if (this.ContainsOnly(str, "1234567890"))<br />
            {<br />
                MessageBox.Show("true");<br />
            }<br />
            else<br />
            {<br />
                MessageBox.Show("False");<br />
                ((DataGridView)sender).CurrentCell.Value = null;<br />
            }<br />
        }<br />
<br />
        private bool ContainsOnly(string str, string anyOf)<br />
        {<br />
            bool result = true;<br />
            Char[] str2 = str.ToCharArray();<br />
<br />
            for (int i = 0; i < str2.Length; i++)<br />
            {<br />
                result = result && (anyOf.IndexOfAny(str[i].ToString().ToCharArray()) >= 0);<br />
                if (!result) break;<br />
            }<br />
<br />
            return result;<br />
        }<br />

//creates or appends an existing text file using a StreamWriter
//NOTE: this requires a refernece to the System.IO namespace
StreamWriter sw = File.AppendText( "myfile.txt" );
//writes something to the file
sw.WriteLine( "Blah blah blah..." );
//closes the stream
sw.Close();