WEBサイトが接続可能になっているかどうかを、チェックできるメソッドを作りました。


using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Reflection;
using System.Windows.Forms;


public bool isWebEnable(string strURL)
{
    try
    {
        Uri siteUri = new Uri(strURL);
        WebRequest wr = WebRequest.Create(siteUri);
        wr.Timeout = 10000;
        WebResponse myResponse = wr.GetResponse();
        myResponse.Close();

        return true;
    }
    catch (WebException ex)
    {
        string ERRMSG = ex.Message + "\r\n\r\n URL:" + strURL;
        MessageBox.Show(ERRMSG, "WEB接続エラー"
        , MessageBoxButtons.OK, MessageBoxIcon.Warning);

        return false;
    }
    catch (Exception ex)
    {
        throw ex;
    }
}

using System;

using System.Collections.Generic;

using System.Text;

using System.Net;

using System.Reflection;

using System.Windows.Forms;

public bool isWebEnable(string strURL)

{

try

{

Uri siteUri = new Uri(strURL);

WebRequest wr = WebRequest.Create(siteUri);

wr.Timeout = 10000;

WebResponse myResponse = wr.GetResponse();

myResponse.Close();

return true;

}

catch (WebException ex)

{

string ERRMSG = ex.Message + "\r\n\r\n URL:" + strURL;

MessageBox.Show(ERRMSG, "WEB接続エラー"

, MessageBoxButtons.OK, MessageBoxIcon.Warning);

return false;

}

catch (Exception ex)

{

throw ex;

}