Update existing list item value in sharepoint using web service code

Question

I have the below code which I am trying to run for updating the list item value. "Settings" is the list name and the item in this list is having index of 1.
Main()
        ListsSoapClient client = new ListsSoapClient();           
        client.ClientCredentials.Windows.ClientCredential = System.Net.CredentialCache.DefaultNetworkCredentials;
        client.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;
        string strListName = "Settings";          
        client.Open();          
        XElement listData = client.GetList(strListName);  
        string listID = listData.Attribute("ID").Value;
        string version = listData.Attribute("Version").Value;
        // string version = listData.Attribute("View").Value; Doesnt work
        // Method 1 : Make the call to SharePoint
        var listItems = client.GetListItems(strListName, null, null, null, null, null, null);
        List<XElement> results = listItems.Descendants().ToList();
        XElement updateItem = results[1];
        updateItem.SetAttributeValue("ows_Value", "value to update");
        client.UpdateListItems(strListName, updateItem); //Didnt work
        // Method 2 : Make the call to SharePoint
        string strBatch = "<Method ID='1' Cmd='Update'>" +
                        "<Field Name='ID'>1</Field>" +
                        "<Field Name='Title'>" + "999" + "</Field></Method>";
        XmlDocument xmlDoc = new System.Xml.XmlDocument();
        System.Xml.XmlElement elBatch = xmlDoc.CreateElement("Batch");
        //elBatch.SetAttribute("OnError","Continue"); //Not mandatory ?
        //elBatch.SetAttribute("ListVersion","1"); //Not mandatory ?
        //elBatch.SetAttribute("ViewName", "00F85842-35AD-4AED-8DF7-0F903FB850BE"); is it mandatory ?
        elBatch.InnerXml = strBatch;
        client.UpdateListItems(strListName, XmlElementToXelement(elBatch)); //doesnt work
        client.Close();
   public static XElement XmlElementToXelement(XmlElement e)
        return XElement.Parse(e.OuterXml);
How do we get the ViewName value of the list using code ? why is it not mandatory in Method 2. At the end of the method1 i am getting the below exception.How do I fix this ?
 Exception of type 'Microsoft.SharePoint.SoapServer.SoapServerException' was thrown.

Answer 1

you can get view name using below links:
http://stackoverflow.com/questions/14857811/sharepoint-web-services-getlistitems-view-name
http://www.a2zmenu.com/Blogs/SharePoint/Get-selected-view-name-of-a-SharePoint-List.aspx
you can use SPList.getview method.