Server Error in '/' Application.

Object cannot be cast from DBNull to other types.

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.InvalidCastException: Object cannot be cast from DBNull to other types.

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:


[InvalidCastException: Object cannot be cast from DBNull to other types.]
   System.DBNull.System.IConvertible.ToDateTime(IFormatProvider provider) +57
   System.Convert.ToDateTime(Object value) +32
   iSignatureForm2.UpdateContract() in C:\Projects\VS2022\FinanceComponents\Unisoft.PFC.Inquiry\Unisoft.EFinance.WebModule\EFinance\signature\iSignatureForm2.aspx.vb:98
   iSignatureForm2.btnSaveQuote_Click(Object sender, EventArgs e) in C:\Projects\VS2022\FinanceComponents\Unisoft.PFC.Inquiry\Unisoft.EFinance.WebModule\EFinance\signature\iSignatureForm2.aspx.vb:48
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +109
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +108
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +31
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3479