Controls :: GridView Export PDF Error - Unable To Cast Object Of Type

May 7, 2015

I get this error when trying to export selected rows in gridview to pdf format

"Unable to cast object of type 'iTextSharp.text.html.simpleparser.CellWrapper' to type 'iTextSharp.text.Paragraph'."

This my code below:

using (StringWriter sw = new StringWriter()) {
using (HtmlTextWriter hw = new HtmlTextWriter(sw)) {
gdfacture.Columns[0].Visible = false;
foreach (GridViewRow row in gdfacture.Rows) {

[Code] ....

View 1 Replies


Similar Messages:

MVC :: Unable To Cast Object Of Type 'System.String' To Type' / How To Fix This Error

Mar 24, 2010

i am using this code for send data to view

[Code]....

Controller e 'System.Collections.Generic.IEnumerable [Code]....

by this code i am render view

[Code]....

after run the application i got this error

Unable to cast object of type 'System.String' to type 'System.Collections.Generic.IEnumerable`1[BentaAccounting.Models.Repository.AllData]'.

View 5 Replies

C# - Error / Unable To Cast Object Of Type 'd__a31[System.Web.UI.WebControls.DropDownList]'

Nov 26, 2010

I am trying to pass a collection of Dropdown controls as a parameter to a method which takes a collection of type Control as input. While executing I get the following error:

"Unable to cast object of type 'd__a31[System.Web.UI.WebControls.DropDownList]' to type 'System.Collections.Generic.IEnumerable1[System.Web.UI.Control]'."

My code:

[code]....

View 2 Replies

Intermittent Membership.GetUser() Error - Unable To Cast Object Of Type System.Guid?

Jan 24, 2011

This error is occuring randomly, and I can't seem to pinpoint what is causing it. For the most part, the code works fine. I'm confused why it works sometimes, but then suddently craps out on me, lol.It happens in the code when I call upon the asp.net membership provider. It only seems to happen when i use Membership.GetUser() to grab the logged in user's information.

View 9 Replies

Crystal Reports :: Error "Unable To Cast Object Of Type 'CrystalDecisions.Web.CrystalReportViewer'

Jan 6, 2011

I have installed the final version of Crystal Reports for Visual Studio 2010. I created a new ASP.Net project, saved it, closed it, and then came back to it later. I was prompted to convert the project because of an out of date version of Crystal Reports. But I just created the project...how can the version already be out of date? Also, once the conversion is complete the CrystalReportViewers error stating "Unable to cast object of type 'CrystalDecisions.Web.CrystalReportViewer' to type 'CrystalDecisions.Web.CrystalReportViewerBase'. I am using .NET Framework 3.5 (I cannot use 4.0 for other reasons). Is this the cause?

View 2 Replies

Forms Data Controls :: Unable To Cast Object Of Type System

Mar 3, 2010

I need some help on the row updating for a gridview that i bind manually to a list, not using objectdatasource or sqldatasourcehere is my rowupdating. What i want to do for now is just get the values from the textboxes and I will store them to sting variables then I will call my update function and pass those as parameters. How do I get the data from the textboxes that the user just edited. I have the following but I am getting an error: "unable to cast object of type System.UI.LiteralControl to type System.UI.TextBox

View 5 Replies

C# - Unable To Cast Object Of Type 'Transaction_Time' To Type 'System.Data.DataSet'?

Dec 17, 2010

I have built a dataset named Transaction_Time.I called it on Page_Load

Transaction_Time tranTme = new Transaction_Time();

put it in the session.

Session["Transaction"] = tranTme;

Then I call that session and cast to dataset.

DataSet dstTranTime = (DataSet)Session["Transaction"];

I got the following error.Unable to cast object of type 'Transaction_Time' to type 'System.Data.DataSet'.

[InvalidCastException: Unable to cast object of type 'Transaction_Time' to type 'System.Data.DataSet'.]
Transaction_Time.Page_Load(Object sender, EventArgs e) in c:InetpubwwwrootWilliam29_11_2010Transaction_Time.aspx.cs:47
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627

It is OK for some other pages. But for some page, it doesn't.

View 2 Replies

Forms Data Controls :: Unable To Cast Object Of Type 'System.Web.UI.LiteralControl' To Type 'System.Web.UI.WebControls.TextBox'

Jan 5, 2010

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

[code]....

View 3 Replies

DataSource Controls :: Unable To Cast Object Of Type '<TakeIterator>d__3a`1[System.Char]' To Type 'System.Collections.IList'

Jan 2, 2010

I want to do paging the API Membership without using the datacontrols, but I get this error "Unable to cast object of type '<TakeIterator>d__3a`1[System.Char]' to type 'System.Collections.IList'." when I do this,

[code]....

View 1 Replies

Forms Data Controls :: Unable To Cast Object Of Type 'System.DBNull' To Type 'System.String'.

Oct 1, 2010

Basically, what I did is that: I have a table in SQL database and some of data fields allow null. I built Objectdatasource through dataset. When I built update page using dataset. It generate the following error before showing the update page correctly. It seems I have issue to retrieve the null value from the database through using objectdatasource through dataset. Any suggestions?An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code

View 6 Replies

DataSource Controls :: Unable To Cast Object Of Type 'System.DBNull' To Type 'System.String'

May 28, 2010

I am trying to write a table output from SQL database to a gridview/ Data List through an Object Data Source. I am a new starter and your help will be useful.

public List<Staff> GetStaff()
cmd.CommandType =
SqlConnection con =
new
SqlConnection(connectionstring);SqlCommand cmd =
new
[code]...

View 4 Replies

Configuration :: Unable To Cast Object Of Type 'System.Web.HttpApplication' To Type 'Microsoft.Practices.CompositeWeb.WebClientApplication'

Apr 15, 2010

I got this error and do not know how to solve it.

I've got a subweb as application. It's called ADMIN. It works fine when running locally but when deploying in the development web server, i got the error: Unable to cast object of type 'System.Web.HttpApplication' to type 'Microsoft.Practices.CompositeWeb.WebClientApplication'

I've got a App_global.asax.dll and App_global.asax.complied on the subweb folder Admin.

View 1 Replies

DataSource Controls :: Unable To Cast Object Of Type 'System.Data.Linq.DataQuery?

Mar 31, 2010

I wanted to delete the record from data but I receive this error "Unable to cast object of type 'System.Data.Linq.DataQuery`1[training_eval.Course]' to type 'training_eval.Course'.

Dim eval_sure = From ev In db.Evaluates Where ev.course_id = indexcourse Select ev.course_id
Dim del_course = From c In db.Courses Where c.Course_id = indexcourse
db.Courses.DeleteOnSubmit(del_course)
db.SubmitChanges()

View 4 Replies

Configuration :: Unable To Cast Object Of Type 'system.web.security.roleprincipal'?

Jun 30, 2010

I have implemented rights based security as I describe here: http://forums.asp.net/p/1380280/2916291.aspxThis has been working well for awhile now, but I am moving the site to IIS 7 and encountering problems. I am able to reach the login screen for my app - but upon login get this error: "Unable to cast object of type 'System.Web.Security.RolePrincipal' to type 'RightsLib.RightPrincipal'."As described in the linked post, I have a "RightsLib.dll" that contains the relevant classes like "RightsHttpModule.cs", "RightPrincipal.cs" etc...My app no longer seems to be able to work with RightsLib.dll. RightsLib.dll resides in the bin directory of my app, and I have a reference to it in my project.me what I'm doing wrong, or what has changed to affect this in IIS 7?The only relevant entry in Web.config I'm aware of.

[Code]....

View 1 Replies

Databases :: Retrieving From OdbcDataReader / Unable To Cast Object Of Type 'System.Byte[]' To Type 'System.String'

Feb 16, 2010

I have defined an ODBC Command and ODBCdatareader as follows

OdbcConnection myConnection = new OdbcConnection(connectionString);
OdbcCommand myCommand = new OdbcCommand();
myCommand.Connection = myConnection;
myCommand.CommandText = "select UOPGM from GREG.TUSROPTF";
OdbcDataReader myReader;
myConnection.Open();
myReader = myCommand.ExecuteReader();

When I try to retreive from the reader as follows:

while (myReader.Read())
{
string someString = myReader["UOPGM"];
lstNames.Items.Add(someString);
}

I get the following error

Error reading the database. Unable to cast object of type 'System.Byte[]' to type 'System.String'."

I have also tried string someString = (string)myReader["UOPGM"]; to no avail

View 4 Replies

Web Forms :: Unable To Cast Object Of Type 'System.DateTime' To Type 'System.String'

Nov 10, 2010

[Code]....

Above is my code. The error I'm get is, Unable to cast object of type 'System.DateTime' to type 'System.String'.

The column "To" and column "Subject" are strings and column "Receive" is DateTime. I can't made any changes in the database, so I need to write some code to handle casting a string to datetime or if statement as a work around.

View 6 Replies

Unable To Cast Object Of Type 'System.EventArgs' To Type 'System.Web.UI.WebControls.FormVi

Nov 24, 2010

Protected Sub FormView1_ItemCreated(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.FormViewCommandEventArgs) Handles FormView1.ItemCreated
Causes Unable to cast object of type 'System.EventArgs' to type 'System.Web.UI.WebControls.FormViewCommandEventArgs'.

The program (asp.net/vb) works fine with FormView1_ItemCommand and FormView1_ItemInserted events but strangely objects to FormView1_ItemCreated. Is it only a VC# event?

View 2 Replies

Web Forms :: Unable To Cast Object Of Type System String To Type System Byte

Feb 20, 2013

Unable to cast object of type 'System.String' to type 'System.Byte[]'....

on line #2

private void download(DataTable dt) { Byte[] bytes = (Byte[])dt.Rows[0]["FileData"];

Response.Buffer = true; Response.Charset = "";

View 1 Replies

Forms Data Controls :: Unable To Cast Object Of Type 'System.Data.Common.DataRecordInternal'?

Jul 7, 2010

Trying to explain this clearly. I have a dropdown listbox where user can select multiple names. These names are then selected/inserted into db table in a loop. Table is displayed in an editable gridview. I have a main sqldatasource1 on my aspx page with select/insert/update permissions, but because select command doesnt work with parameters of multiple values (or does it?), i resorted to using an alternative sql datasource in the codebehind in order to run the select query on the multiple values chosen from the dropdownlist to see if they were in my table.I now get this error when I go to select multiple names from the dropdown list

Unable to cast object of type 'System.Data.Common.DataRecordInternal' to type 'System.Data.DataRowView'.

View 2 Replies

ADO.NET :: Unable To Cast Object Of Type System.Guid To Type System.String?

Sep 17, 2010

[Code]....
System.InvalidCastException was unhandled by user code
Message=Unable to cast object of type 'System.Guid' to type 'System.String'.
Source=System.Data.Linq
System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execut

View 4 Replies

MVC :: Unable To Cast Object Of Type 'System.Web.Mvc.ValueProviderResult' To Type 'System.IConvertible'

Aug 23, 2010

Why am I getting this error on line:

sp.Price = Convert.ToDecimal(collection.GetValue("Price"));

sp is :

SPecials_Templates sp = new SPecials_Templates();

SPecials_Templates Defined:

[MetadataType(typeof(SPecials_TemplatesMetaData))]
public partial class SPecials_Templates
{
public class SPecials_TemplatesMetaData
{
[ScaffoldColumn(false)]
public object Key { get; set; }
[StringLength(50)]
public object Template_Name { get; set; }
[StringLength(12)]
public object Headline { get; set; }
[StringLength(12)]
public object headline2 { get; set; }
[StringLength(160)].......

View 2 Replies

Web Forms :: Unable To Cast Object Of Type 'ASP.masterpage_master' To Type 'ASP.masterpage_master'?

Dec 2, 2010

I'm getting this error occassionally.

Exception Details:System.InvalidCastException: Unable to cast object of type 'ASP.main_master' to type 'ASP.main_master'.

I have to edit and resave main.master. Is there anyother solution for solve this problem.

View 3 Replies

Cast Object Of Type' Error - Resolved By IIS Recycle?

Sep 8, 2010

3rd party ASP.Net web site and web service installed. The code appears not to log errors to server log or custom error log.

User receives the following critical untrapped error message:

"System.Web.Services.Protocols.SoapException: Unable to cast object of type 'System.Security.Principal.WindowsIdentity' to type 'Library.Security.Identity'. at ....."

Of course I understand the type cast issue but why would a IIS recycle resolve the issue?

View 1 Replies

Forms Data Controls :: Deleting From GridView Without Call Command - Unable To Cast Object

Jan 28, 2010

I'm using vb and after i converted it from C# and tried to implement this:

[Code]....

I got an error that said: Unable to cast object of type 'System.Web.UI.WebControls.GridView' to type 'System.Web.UI.WebControls.LinkButton'.

And here's my code for the gridview table.

[Code]....

I've tried altering the code here and there but it never work

Protected Sub GridView1_RowCommand(ByVal sender As Object, ByVal e As GridViewCommandEventArgs)

View 5 Replies

C# - How To Store An Array In A ViewState Error / Unable To Cast Object

Feb 6, 2011

My code is:

[code]....

When I run the program, an error occurs:

Unable to cast object of type 'System.Collections.Generic.List`1[System.Int32]' to type System.Int32[]'.

Why does this error occur?

View 2 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved