Extended Text box controls in C#

Hi all,

Good Day! I am using C# Visual Studio 2008. in this i am developing code for setting property value of extended text boxes. In this extended text box i can set property of data required and data type. But when i am using tab page control as ctrl that common name i couldn't set property. i am not getting these extended properties.

And my code is:

TabPage pTbPage = tabControl1.SelectedTab;  

foreach (Control ctrl in pTbPage.Controls) //Validation 

{ 

if ((ctrl) is extdTextBox) 

{                       

findFieldName = "fld" + ctrl.Name.Substring(3, (ctrl.Name.Length) - 3); 

try // read validation table {                          

sltqry = "SELECT * FROM tValidation where (tTName='" + table2Select + "') and (tFName='" + findFieldName + "')";                          

cmd = new SqlCommand(sltqry, cn);                          

cmd.CommandType = CommandType.Text;                          

rdr = cmd.ExecuteReader();                         

 rdr.Read(); 

if (rdr != null && rdr.HasRows) foundRecord = true; 

if (foundRecord == true) 

{                              

getType = rdr.GetString(rdr.GetOrdinal("tType"));

 if(getType=="Int") 

{                               

ctrl.//not getting Datatype property

 //here i want set data type as Whole number 

} 

if (rdr.GetString(rdr.GetOrdinal("tReqd")) == "TRUE") 

{                               

 ctrl. //not getting DAtaRequired  //here i want set data required as yes   

 } 

rdr.Close();                          

cmd.Dispose(); } //try catch (Exception ex) 

{                         

 errlog(calgRotnTryName, ex.Message, sltqry); //function to insert error message details into terrlog table 

if (msgBoxCount == 0) { MessageBox.Show(calgRotnTryName + " " + ex.Message); 

} 

} //catch (Exception ex) 

} //if ((ctrl) is extdTextBox) 

} //foreach (Control ctrl in pTbPage.Controls)  //Validation