Reading source code through website URL

private static String getHTML(String strURL)

    {

        String scrappingResult = String.Empty;

        try

        {

            if (strURL != String.Empty)

            {

                if (setAllowUnsafeHeaderParsing())

                {

                    System.Net.HttpWebRequest wReq = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(strURL);

                    wReq.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)";

                    using (System.Net.HttpWebResponse wResp = (System.Net.HttpWebResponse)wReq.GetResponse())

                    {

                        using (System.IO.StreamReader oSRead = new System.IO.StreamReader(wResp.GetResponseStream()))

                            scrappingResult = oSRead.ReadToEnd();

                    }

                    wReq.Abort();

                }

            }

        }

        catch (Exception e)

        {

            //gbl.ErrorLog(e.Message, "GetHTML", Global.scrapping_data);

            scrappingResult = String.Empty;

        }

        return scrappingResult;

    }

    private static bool setAllowUnsafeHeaderParsing()

    {

        System.Reflection.Assembly aNetAssembly = System.Reflection.Assembly.GetAssembly(typeof(System.Net.Configuration.SettingsSection));

        if (aNetAssembly != null)

        {

            Type aSettingsType = aNetAssembly.GetType("System.Net.Configuration.SettingsSectionInternal");

            if (aSettingsType != null)

            {

                object anInstance = aSettingsType.InvokeMember("Section",

                  System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.GetProperty | System.Reflection.BindingFlags.NonPublic, null, null, new object[] { });

                if (anInstance != null)

                {

                    System.Reflection.FieldInfo aUseUnsafeHeaderParsing = aSettingsType.GetField("useUnsafeHeaderParsing", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);

                    if (aUseUnsafeHeaderParsing != null)

                    {

                        aUseUnsafeHeaderParsing.SetValue(anInstance, true);

                        return true;

                    }

                }

            }

        }

        return false;

    }

Loggged out and refresh page when open again

Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Cache.SetExpires(DateTime.Now.AddSeconds(-1));
Response.Cache.SetAllowResponseInBrowserHistory(false);
Response.Cache.SetNoStore();

File upload more than 4 mb issue solving code

    <configuration>

      <system.web>

        <httpRuntime maxRequestLength="2147483645"

          enable = "true"

          requestLengthDiskThreshold="512" useFullyQualifiedRedirectUrl="true"

          executionTimeout="45"

          versionHeader="1.1.4128"/>

      </system.web>

    </configuration>

Get corresponding compare column values from datatable using Linq

public static List<object> GetCorrespondingColumnValue(DataTable dsdatatable, string strCompareColumnName, string strCompareValue, string strReturnColumnName)

        {

            List<object> x = (from r in dsdatatable.AsEnumerable()

                              where (string)r[strCompareColumnName] == strCompareValue.ToString()

                              select r[strReturnColumnName]).ToList();

             

            return x;

        }