while accessing values from dynamic controls getting error

Phani Kumar

Hi All,

I have created dynamic textboxes in a panel and trying to save them into database as a XML file, but I am receiving an error like

Unable to cast object of type 'System.Web.UI.LiteralControl' to type 'System.Web.UI.WebControl'

Here is my piece of code which I have written

StringBuilder _StrResult = new StringBuilder();

_StrResult.Append("");

foreach (TextBox txt in pnlInterview.Controls)

{

foreach (Label lbl in pnlInterview.Controls)

{

Label lblLevel = (Label)pnlInterview.FindControl("lbl");

TextBox txtInterviewRound = (TextBox)pnlInterview.FindControl("txt");

_StrResult.Append("");

_StrResult.Append("" + lblLevel.Text.ToString() + "");

_StrResult.Append("" + txtInterviewRound.Text.ToString() + "");

_StrResult.Append("");

}

_StrResult.Append("");

return _StrResult;

Unable to recognize where it went wrong

I am unable to access oftype()

at starting foreach loop only I am receiving this error

any help is appreciated

9 Replies

Know the answer? Post it — somebody with the same question will find it here.

Phani Kumar10y ago
Thanks Mr. Abubakar, but my issue was resolved yesterday, I have changed my code and issue was resolved.
0
Abubakar Dandoti10y ago
hi,

Kindly find the attachment i have made some modification in your code .

use the code what i have used it resolve your error
0
Phani Kumar10y ago
Hi Abubakar,

I have tried your given code, but no use, still the error exists.

Please check the error snap shot and code pages
0
Abubakar Dandoti10y ago
hi kumar

write the below code to avoid this error.

StringBuilder _StrResult = new StringBuilder();
_StrResult.Append("");
foreach (TextBox txt in pnlInterview.Controls)
{
foreach (Label lbl in pnlInterview.Controls)
{
Label lblLevel = (Label)pnlInterview.FindControl("lbl");
_StrResult.Append("");
_StrResult.Append("" + lblLevel.Text.ToString() + "");
}
TextBox txtInterviewRound = (TextBox)pnlInterview.FindControl("txt");
_StrResult.Append("" + txtInterviewRound.Text.ToString() + "");
_StrResult.Append("");

}
_StrResult.Append("");
return _StrResult;
0
Phani Kumar10y ago
Hi Abubakar,

Please find my page aspx code here

*

CssClass="failureNotification" ErrorMessage="Please Select Module"
ValidationGroup="IRM" ForeColor="Red">

*

CssClass="failureNotification" ErrorMessage="Please Enter Number of Rounds of Interview"
ValidationGroup="IRM" ForeColor="Red">

0
Abubakar Dandoti10y ago
just post your aspx page i will explain you
0
Ravi Patel10y ago
Hi ,

Check this

http://forums.asp.net/t/1228689.aspx?Unable+to+cast+object+of+type+System+Web+UI+LiteralControl+to+type+System+Web+UI+WebControls+TextBox+
0
Phani Kumar10y ago
Hi Abubakar,

can you elobrate your answer
0
Abubakar Dandoti10y ago
you are trying to convert literal control to web control .
just convert literal control to literal control it self
0