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POWeb services error I found the error in web services
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  1. POWeb services error I found the error in web services
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    copied!<p>These method in AutoComplete.asmx</p> <pre><code>[WebMethod] public List&lt;string&gt; GetCountries(string prefixText) { SqlConnection con = new SqlConnection( ConfigurationManager.ConnectionStrings[ "MarinaNewConnectionString"].ToString()); con.Open(); SqlCommand cmd = new SqlCommand( "select * from Marina where Country like @Name+'%'", con); cmd.Parameters.AddWithValue("@Name", prefixText); SqlDataAdapter da = new SqlDataAdapter(cmd); DataTable dt = new DataTable(); da.Fill(dt); List&lt;string&gt; CountryNames = new List&lt;string&gt;(); for(int i=0;i&lt;dt.Rows.Count;i++) { CountryNames.Add(dt.Rows[i][5].ToString()); } return CountryNames; } </code></pre> <p>I found the error </p> <blockquote> <p>System.InvalidOperationException: There was an error generating the XML document. ---></p> <p>System.InvalidCastException: Unable to cast object of type </p> </blockquote> <p>EDIT: </p> <p>The SQL for the table:</p> <pre><code>CREATE TABLE [dbo].[Marina]( [SNo] [int] IDENTITY(1,1) NOT NULL, [WebSource] [varchar](500) NULL, [MarinaName] [varchar](500) NULL, [Region] [varchar](500) NULL, [Address] [varchar](500) NULL, [Country] [varchar](500) NULL, [fax] [varchar](500) NULL, [Phone] [varchar](500) NULL, [Email] [varchar](500) NULL, [Website] [varchar](500) NULL, [latitude] [varchar](500) NULL, [langitude] [varchar](500) NULL, [NumberOfMoorings] [varchar](500) NULL, [MGiD] [varchar](500) NULL, [Association] [varchar](200) NULL, ) ) ON [PRIMARY] </code></pre> <p>The StackTrace:</p> <blockquote> <p>System.InvalidOperationException: There was an error generating the XML document. ---> System.InvalidCastException: Unable to cast object of type 'System.Collections.Generic.List`1[System.String]' to type 'System.String[]'. at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriter1.Write3_Arr‌​ayOfString(Object o) at Microsoft.Xml.Serialization.GeneratedAssembly.ArrayOfStringSerializer1.Serialize(‌​Object objectToSerialize, XmlSerializationWriter writer)</p> </blockquote>
 

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