Asp.net Queries

private bool ValidateDate(string date) { try { string[] dateParts = date.Split('/'); string dte = dateParts.Length.ToString(); if (dte != "3") { return false; } if (dateParts[0].Length == 2 && Convert.ToInt32(dateParts[0]) { if (dateParts[1].Length == 2 && Convert.ToInt32(dateParts[1]) { if (dateParts[2].Length == 4 && Convert.ToInt32(dateParts[2]) >1900 ) { return true; } return false; } return false; } else return false; } catch { return false; } }

string str = null; string[] strArr = null; //str = strdate; str = modifytext; char[] splitchar = { '/' }; strArr = str.Split(splitchar); string[] field = str.ToString().Split(("/").ToCharArray()); //string[] dateparts = new string[4]; string DDDD = field[0].ToString(); string MMMM = field[1].ToString(); string YYYY1 = field[2].ToString(); if ((field[0].ToString() == "1") || (field[0] == "2") || (field[0] == "3") || (field[0] == "4") || (field[0] == "5") || (field[0] == "6") || (field[0] == "7") || (field[0] == "8") || (field[0] == "9")) { ...

How to change value on selection of dropdown list control in datagrid. // drpmodify is dropdown list. protected void drpmodify_SelectedIndexChanged(object sender, EventArgs e) { DropDownList list = (DropDownList)sender; TableCell cell = list.Parent as TableCell; DataGridItem item = cell.Parent as DataGridItem; DropDownList index = (DropDownList)item.Cells[10].FindControl("drpmodify"); DropDownList drpmodify12 = null; drpmodify12 = (DropDownList)index; TextBox txtupdate = null; txtupdate = (TextBox)item.Cells[11].FindControl("TxtUpdate"); if ((drpmodify12.SelectedValue == "N") || (drpmodify12.SelectedValue == "M") || (drpmodify12.SelectedValue == "NE") || (drpmodify12.SelectedValue == "DU") || (drpmodify12.SelectedValue == "D") || (drpmodify12.SelectedValue == "I")) { txtupdate.Text = ""...