ASP.NET

StringBuilder sb = new StringBuilder();
List<string> rows = new List<string>();
foreach(DataColumn col in DataSource.Columns)
{
    rows.Add(col.ColumnName);
}

sb.AppendLine(string.Join(",", rows.ToArray()));
rows.Clear();
foreach(DataRow row in DataSource.Rows)
{
    foreach(object item in row.ItemArray)
    {
        rows.Add(item.ToString());
    }
    sb.AppendLine(string.Join(",", rows.ToArray()));
    rows.Clear();
}

Response.ContentType = "Application/x-msexcel";
Response.AddHeader("content-disposition", "attachment;filename=export.csv");
Response.Clear();
using(StreamWriter writer = new StreamWriter(Response.OutputStream, Encoding.UTF8))
{
    writer.Write(sb.ToString());
}
Response.End();

Member 8196580 wrote:

retrieving xml tag values

padmanabhan N wrote:

But is there any quick process for this?

 var re_EmailAddress = new RegExp("\\w+([-+.']\\w+)*@\\w+([-.]\w+)*\\.\\w+([-.]\\w+)*")
var txt_EmailAddress_Validate = $('[id*="_txt_CreateNewAccount_Email_Field"]').val().trim();
var match_EmailAddress = re_EmailAddress.exec(txt_EmailAddress_Validate);
if (match_EmailAddress == null) {
// Invalid email address
}
else {
// valid email address
}

Regex regex = new Regex("-{2}");
bool isValid = !regex.IsMatch(emailString);

var regex = new RegExp('-{2}');
var isValid = !regex.test(emailString);

// Even easier way is to use the String.search method and the RegExp shorthand:
var isValid = emailString.search(/-{2}/) == -1;