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:


Line 205:                        <li><i class="fa fa-fax">
Line 206:
Line 207:                            </i><span><asp:HyperLink ID="HyperLink4" NavigateUrl ='<%# (String.IsNullOrEmpty(Convert.ToString(Eval("FIRMAFAX25"))))?"":String.Format("tel://0"+"{0: ### ### ## ##}", Convert.ToInt64(Eval("FIRMAFAX25"))) %>' runat="server" ForeColor="#990033"><%# (String.IsNullOrEmpty(Convert.ToString(Eval("FIRMAFAX25"))))?"":String.Format("0"+"{0: ### ### ## ##}", Convert.ToInt64(Eval("FIRMAFAX25"))) %></asp:HyperLink></span>
Line 208:
Line 209:                        </li>

Source File: c:\inetpub\vhosts\isletmebul.com\httpdocs\isletme.aspx    Line: 207

Stack Trace:


[FormatException: Input string was not in a correct format.]
   System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +14542542
   System.Number.ParseInt64(String value, NumberStyles options, NumberFormatInfo numfmt) +174
   System.String.System.IConvertible.ToInt64(IFormatProvider provider) +58
   ASP.isletme_aspx.__DataBinding__control27(Object sender, EventArgs e) in c:\inetpub\vhosts\isletmebul.com\httpdocs\isletme.aspx:207
   System.Web.UI.Control.OnDataBinding(EventArgs e) +100
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +178
   System.Web.UI.Control.DataBindChildren() +248
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +195
   System.Web.UI.WebControls.DataList.CreateItem(Int32 itemIndex, ListItemType itemType, Boolean dataBind, Object dataItem) +175
   System.Web.UI.WebControls.DataList.CreateControlHierarchy(Boolean useDataSource) +885
   System.Web.UI.WebControls.BaseDataList.OnDataBinding(EventArgs e) +89
   System.Web.UI.WebControls.BaseDataList.EnsureDataBound() +86
   System.Web.UI.Control.EnsureChildControls() +107
   System.Web.UI.WebControls.BaseDataList.get_Controls() +24
   firma.Page_Load(Object sender, EventArgs e) +1290
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0