Input string was not in a correct format. .net

I have a calendar on some code thats been running for a year now and all of a sudden I'm getting this error when you click on any date. Has anyone ever seen this error before?

Server Error in '/' Application.
--------------------------------------------------------------------------------

Input string was not in a correct format.
Description: 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.

Exception Details: System.FormatException: Input string was not in a correct format.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  

Stack Trace:


[FormatException: Input string was not in a correct format.]
   System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +0
   System.ComponentModel.Int32Converter.FromString(String value, NumberFormatInfo formatInfo) +37
   System.ComponentModel.BaseNumberConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value) +382

[Exception: '' is not a valid value for Int32.]
   System.ComponentModel.BaseNumberConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value) +413
   System.ComponentModel.TypeConverter.ConvertFromString(ITypeDescriptorContext context, CultureInfo culture, String text) +12
   System.Drawing.ColorConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value) +980
   System.Web.UI.LosFormatter.ConsumeTypeConverterValue(String token) +225
   System.Web.UI.LosFormatter.DeserializeValueInternal() +1086
   System.Web.UI.LosFormatter.DeserializeValueInternal() +594
   System.Web.UI.LosFormatter.DeserializeValueInternal() +208
   System.Web.UI.LosFormatter.DeserializeValueInternal() +162
   System.Web.UI.LosFormatter.DeserializeValueInternal() +277
   System.Web.UI.LosFormatter.DeserializeValueInternal() +594
   System.Web.UI.LosFormatter.DeserializeValueInternal() +369
   System.Web.UI.LosFormatter.DeserializeValueInternal() +594
   System.Web.UI.LosFormatter.DeserializeValueInternal() +369
   System.Web.UI.LosFormatter.DeserializeValueInternal() +594
   System.Web.UI.LosFormatter.DeserializeValueInternal() +369
   System.Web.UI.LosFormatter.DeserializeValueInternal() +594
   System.Web.UI.LosFormatter.DeserializeValueInternal() +369
   System.Web.UI.LosFormatter.DeserializeValueInternal() +594
   System.Web.UI.LosFormatter.DeserializeValueInternal() +369
   System.Web.UI.LosFormatter.DeserializeValueInternal() +594
   System.Web.UI.LosFormatter.DeserializeValueInternal() +369
   System.Web.UI.LosFormatter.DeserializeValueInternal() +594
   System.Web.UI.LosFormatter.DeserializeValueInternal() +369
   System.Web.UI.LosFormatter.DeserializeValueInternal() +594
   System.Web.UI.LosFormatter.DeserializeValueInternal() +369
   System.Web.UI.LosFormatter.DeserializeValueInternal() +594
   System.Web.UI.LosFormatter.DeserializeValueInternal() +369
   System.Web.UI.LosFormatter.DeserializeValueInternal() +594
   System.Web.UI.LosFormatter.DeserializeValueInternal() +369
   System.Web.UI.LosFormatter.DeserializeValueInternal() +594
   System.Web.UI.LosFormatter.DeserializeValueInternal() +369
   System.Web.UI.LosFormatter.DeserializeValueInternal() +323
   System.Web.UI.LosFormatter.Deserialize(String input) +332
   System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +102

[HttpException (0x80004005): Invalid_Viewstate
      Client IP: 75.183.136.75
      Port: 2321
      User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
      ViewState: t<281495192;t<;l<i<1>;>;l<t<;l<i<1>;>;l<t<;l<i<1>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<1>;i<2>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<p<p<l<Text;Font_Bold;ForeColor;Font_Size;_!SB;>;l<Welcome to the Ocean Plaza online reservation system.;o<t>;2<RoyalBlue>;System.Web.UI.WebControls.FontUnit, System.Web, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a<14pt>;i<3076>;>>;>;;>;>>;>>;>>;t<;l<i<0>;i<1>;i<2>;>;l<t<;l<i<0>;i<2>;i<4>;>;l<t<;l<i<0>;>;l<t<p<p<l<BackImageUrl;_!SB;>;l<https://www.werentrooms.com/Images/oceanTop.jpg;i<65536>;>>;>;l<i<0>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;>>;t<;l<i<0>;>;l<t<p<p<l<BackImageUrl;_!SB;>;l<https://www.werentrooms.com/Images/OCTop2.jpg;i<65536>;>>;>;l<i<0>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;>>;t<;l<i<0>;>;l<t<p<p<l<BackImageUrl;_!SB;>;l<https://www.werentrooms.com/Images/OCTop3.jpg;i<65536>;>>;>;l<i<0>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;>>;>>;t<;l<i<0>;i<2>;i<4>;>;l<t<;l<i<0>;>;l<t<p<p<l<Width;Height;BorderWidth;BackColor;BorderColor;HorizontalAlign;_!SB;>;l<1<243px>;1<100%>;1<1px>;2<''>;2<''>;System.Web.UI.WebControls.HorizontalAlign, System.Web, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a<Center>;i<1049016>;>>;>;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<4>;>;l<t<;l<i<1>;i<3>;>;l<t<;l<i<0>;>;l<t<t<;t<i<8>;@<1;2;3;4;5;6;7;8;>;@<1;2;3;4;5;6;7;8;>>;>;;>;>>;t<;l<i<0>;>;l<t<t<;t<i<9>;@<0;1;2;3;4;5;6;7;8;>;@<0;1;2;3;4;5;6;7;8;>>;>;;>;>>;>>;>>;>>;>>;>>;>>;>>;>>;>>;t<;l<i<0>;>;l<t<p<p<l<Width;BorderWidth;BackColor;BorderColor;Height;HorizontalAlign;_!SB;>;l<1<243px>;1<1px>;2<''>;2<''>;1<100%>;51<Center>;i<1049016>;>>;>;l<i<1>;>;l<t<;l<i<0>;>;l<t<;l<i<1>;>;l<t<p<p<l<Visible;>;l<o<t>;>>;>;l<i<1>;i<3>;i<6>;i<7>;>;l<t<;l<i<0>;>;l<t<;l<i<1>;>;l<t<@0<p<p<l<Visible;PageCount;_!ItemCount;_!DataSourceItemCount;DataKeys;>;l<o<f>;i<1>;i<4>;i<4>;l<>;>>;>;;;;;;;;;;>;l<i<0>;>;l<t<;l<i<1>;i<2>;i<3>;i<4>;>;l<t<;l<i<1>;i<2>;i<3>;i<4>;>;l<t<p<p<l<Text;>;l<A;>>;p<l<onmouseover;onmouseout;onclick;>;l<javascript:this.style.backgroundColor=''\;this.style.cursor='hand'\;;javascript:this.style.backgroundColor='LightGrey'\;this.style.cursor='default'\;;javascript:document.Form1.action='https://www.werentrooms.com/reserv/Reservation.aspx?RoomTypeID=138&HotelID=25&PackageID=0'\;document.Form1.submit()\;;>>>;;>;t<p<p<l<Text;>;l<138;>>;>;;>;t<p<p<l<Text;>;l<25;>>;>;;>;t<p<p<l<Text;>;l<
																	\<asp:Literal Text="\<br\>" ID="Lit"\>\</asp:Literal\>
																  ;>>;>;;>;>>;t<;l<i<1>;i<2>;i<3>;i<4>;>;l<t<p<p<l<Text;>;l<BV;>>;p<l<onmouseover;onmouseout;onclick;>;l<javascript:this.style.backgroundColor=''\;this.style.cursor='hand'\;;javascript:this.style.backgroundColor='WhiteSmoke'\;this.style.cursor='default'\;;javascript:document.Form1.action='https://www.werentrooms.com/reserv/Reservation.aspx?RoomTypeID=140&HotelID=25&PackageID=0'\;document.Form1.submit()\;;>>>;;>;t<p<p<l<Text;>;l<140;>>;>;;>;t<p<p<l<Text;>;l<25;>>;>;;>;t<p<p<l<Text;>;l<
																	\<asp:Literal Text="\<br\>" ID="Lit"\>\</asp:Literal\>
																  ;>>;>;;>;>>;t<;l<i<1>;i<2>;i<3>;i<4>;>;l<t<p<p<l<Text;>;l<DV;>>;p<l<onmouseover;onmouseout;onclick;>;l<javascript:this.style.backgroundColor=''\;this.style.cursor='hand'\;;javascript:this.style.backgroundColor='LightGrey'\;this.style.cursor='default'\;;javascript:document.Form1.action='https://www.werentrooms.com/reserv/Reservation.aspx?RoomTypeID=143&HotelID=25&PackageID=0'\;document.Form1.submit()\;;>>>;;>;t<p<p<l<Text;>;l<143;>>;>;;>;t<p<p<l<Text;>;l<25;>>;>;;>;t<p<p<l<Text;>;l<
																	\<asp:Literal Text="\<br\>" ID="Lit"\>\</asp:Literal\>
																  ;>>;>;;>;>>;t<;l<i<1>;i<2>;i<3>;i<4>;>;l<t<p<p<l<Text;>;l<JSV;>>;p<l<onmouseover;onmouseout;onclick;>;l<javascript:this.style.backgroundColor=''\;this.style.cursor='hand'\;;javascript:this.style.backgroundColor='WhiteSmoke'\;this.style.cursor='default'\;;javascript:document.Form1.action='https://www.werentrooms.com/reserv/Reservation.aspx?RoomTypeID=147&HotelID=25&PackageID=0'\;document.Form1.submit()\;;>>>;;>;t<p<p<l<Text;>;l<147;>>;>;;>;t<p<p<l<Text;>;l<25;>>;>;;>;t<p<p<l<Text;>;l<
																	\<asp:Literal Text="\<br\>" ID="Lit"\>\</asp:Literal\>
																  ;>>;>;;>;>>;>>;>>;>>;>>;t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<p<;p<l<onmouseover;onmouseout;>;l<javascript:document.body.style.cursor = 'hand'\;;javascript:document.body.style.cursor = 'default'\;;>>>;;>;>>;>>;t<;l<i<0>;>;l<t<;l<i<0>;i<2>;i<4>;>;l<t<p<;p<l<onmouseover;onmouseout;>;l<javascript:document.body.style.cursor = 'hand'\;;javascript:document.body.style.cursor = 'default'\;;>>>;;>;t<p<;p<l<onmouseover;onmouseout;>;l<javascript:document.body.style.cursor = 'hand'\;;javascript:document.body.style.cursor = 'default'\;;>>>;;>;t<p<;p<l<onmouseover;onmouseout;>;l<javascript:document.body.style.cursor = 'hand'\;;javascript:document.body.style.cursor = 'default'\;;>>>;;>;>>;>>;>>;>>;>>;>>;>>;t<;l<i<0>;>;l<t<p<p<l<BorderWidth;BackColor;BorderColor;Width;Height;_!SB;>;l<1<1px>;2<''>;2<''>;1<294px>;1<100%>;i<440>;>>;>;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;i<1>;i<2>;i<3>;i<4>;i<5>;i<6>;i<7>;i<8>;i<9>;i<11>;>;l<t<;l<i<1>;i<3>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<1>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;>>;>>;>>;t<;l<i<1>;i<3>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;t<;l<i<1>;i<3>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;t<;l<i<1>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;t<;l<i<1>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;t<;l<i<1>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;t<;l<i<1>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;t<;l<i<1>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;t<;l<i<1>;>;l<t<;l<i<0>;>;l<t<p<p<l<ForeColor;_!SB;>;l<2<''>;i<4>;>>;>;;>;>>;>>;t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;i<1>;i<2>;i<3>;i<4>;i<5>;i<6>;i<7>;i<9>;i<11>;i<13>;i<14>;i<17>;>;l<t<;l<i<0>;i<1>;>;l<t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*First Name')\;;javascript:resetValue(this, '*First Name')\;;>>>;;>;>>;t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*Last Name')\;;javascript:resetValue(this, '*Last Name')\;;>>>;;>;>>;>>;t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*Address')\;;javascript:resetValue(this, '*Address')\;;>>>;;>;>>;>>;t<;l<i<0>;i<1>;>;l<t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*City')\;;javascript:resetValue(this, '*City')\;;>>>;;>;>>;t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*State/Province')\;;javascript:resetValue(this, '*State/Province')\;;>>>;;>;>>;>>;t<;l<i<0>;i<1>;>;l<t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*Zip/Post Code')\;;javascript:resetValue(this, '*Zip/Post Code')\;;>>>;;>;>>;t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*Country')\;;javascript:resetValue(this, '*Country')\;;>>>;;>;>>;>>;t<;l<i<0>;i<1>;>;l<t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*Email')\;;javascript:resetValue(this, '*Email')\;;>>>;;>;>>;t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*Day Phone')\;;javascript:resetValue(this, '*Day Phone')\;;>>>;;>;>>;>>;t<;l<i<0>;i<1>;>;l<t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*Evening Phone')\;;javascript:resetValue(this, '*Evening Phone')\;;>>>;;>;>>;t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, 'Fax')\;;javascript:resetValue(this, 'Fax')\;;>>>;;>;>>;>>;t<p<p<l<Visible;>;l<o<f>;>>;>;;>;t<p<p<l<Visible;>;l<o<f>;>>;>;;>;t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*Name on Card')\;;javascript:resetValue(this, '*Name on Card')\;;>>>;;>;>>;>>;t<;l<i<0>;i<1>;>;l<t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*Card Number')\;;javascript:resetValue(this, '*Card Number')\;;>>>;;>;>>;t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this, '*Secure Code')\;;javascript:resetValue(this, '*Secure Code')\;;>>>;;>;>>;>>;t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<;l<i<0>;i<2>;>;l<t<;l<i<0>;>;l<t<t<p<p<l<DataTextField;DataValueField;>;l<PaymentTypeName;PaymentTypeName;>>;>;t<i<4>;@<Amex;Discover;MC;Visa;>;@<Amex;Discover;MC;Visa;>>;>;;>;>>;t<;l<i<0>;i<2>;>;l<t<t<;t<i<12>;@<01;02;03;04;05;06;07;08;09;10;11;12;>;@<01;02;03;04;05;06;07;08;09;10;11;12;>>;>;;>;t<t<;t<i<7>;@<2007;2008;2009;2010;2011;2012;2013;>;@<2007;2008;2009;2010;2011;2012;2013;>>;>;;>;>>;>>;>>;>>;>>;t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<p<;p<l<onFocus;onBlur;>;l<javascript:clrValue(this)\;;javascript:resetValue(this, 'Comments/Request')\;;>>>;;>;>>;>>;t<;l<i<0>;>;l<t<;l<i<0>;>;l<t<p<;p<l<onclick;>;l<javascript:return checkCard()\;;>>>;;>;>>;>>;>>;>>;>>;>>;>>;>>;>>;>>;>>;>>;>>;>>;t<;l<i<0>;i<2>;i<4>;>;l<t<;l<i<0>;>;l<t<p<p<l<BackImageUrl;_!SB;>;l<https://www.werentrooms.com/Images/oceanBottom.jpg;i<65536>;>>;>;;>;>>;t<;l<i<0>;>;l<t<p<p<l<BackImageUrl;_!SB;>;l<https://www.werentrooms.com/Images/OCBottom2.jpg;i<65536>;>>;>;;>;>>;t<;l<i<0>;>;l<t<p<p<l<BackImageUrl;_!SB;>;l<https://www.werentrooms.com/Images/OCBottom3.jpg;i<65536>;>>;>;;>;>>;>>;>>;>>;>>;>>;>>;>>;>>;l<Reservation:cbxAdmin;Reservation:cbxAttend;Reservation:cblPackageAmenities:0;Reservation:cbxFutureEmails;Reservation:cbxDisclaimer;>>
      Http-Referer: https://www.werentrooms.com/reserv/reservation.aspx?hotelid=25
      Path: /reserv/reservation.aspx.]
   System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +443
   System.Web.UI.Page.LoadPageViewState() +18
   System.Web.UI.Page.ProcessRequestMain() +447

 
Karla77Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Daniel WilsonCommented:
All I can tell so far for sure (and you may have figured it out) is that somewhere that you're trying to convert a string to an Int32, you're actually passing in an empty string.

If I'm reading this right, you're explicitly calling ParseInt32 somewhere in your page.  For debugging, can you print out the value of each string you're trying to parse to an int32 to find the problem value?
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Karla77Author Commented:
Thanks, I figure it out. but you can have the points
0
Daniel WilsonCommented:
Sorry I was not able to be more help on it.
0
DiskFaktoryCommented:
How can you solve this problem? i have the same problem too
0
Daniel WilsonCommented:
For debugging, can you print out the value of each string you're trying to parse to an int32 to find the problem value?
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Web Applications

From novice to tech pro — start learning today.