شما با استفاده از اين كد مي توانيد سورس يك صفحه اينترنتي را دانلود و به صورت رشته برگردانيد
string getPageSource(string URL)
{
System.Net.WebClient webClient = new System.Net.WebClient();
string strSource = webClient.DownloadString(URL);
webClient.Dispose();
return strSource;
}
http://www.4shared.com/file/62830895/4427c18/AJAXEnabledWebSite1.html
البته این کد چیزهای دیگه ای هم داره که به دردتون می خوره
با استفاده از اين ابع شما مي توانيد يك آدرس اينترنتي را تجزيه كنيد
چند نكته :
1- اين كد فقط در .net 3 جواب خواهد داد
2- فضاي نام system.net.uri بايد اضافه شود
public static void ParseUri(Uri uri)
{
try
{
// System.Net.Uri class constructor has parsed it for us.
// new Uri("http://user:password@localhost:8080/www.abc.com/
// home%20page.htm?item=1233#stuff")
StringBuilder uriParts = new StringBuilder();
uriParts.AppendFormat("AbsoluteURI: {0}{1}",
uri.AbsoluteUri, Environment.NewLine);
uriParts.AppendFormat("AbsolutePath: {0}{1}",
uri.AbsolutePath, Environment.NewLine);
uriParts.AppendFormat("Scheme: {0}{1}",
uri.Scheme, Environment.NewLine);
uriParts.AppendFormat("UserInfo: {0}{1}",
uri.UserInfo, Environment.NewLine);
uriParts.AppendFormat("Authority: {0}{1}",
uri.Authority, Environment.NewLine);
uriParts.AppendFormat("DnsSafeHost: {0}{1}",
uri.DnsSafeHost, Environment.NewLine);
uriParts.AppendFormat("Host: {0}{1}",
uri.Host, Environment.NewLine);
uriParts.AppendFormat("HostNameType: {0}{1}",
uri.HostNameType.ToString(), Environment.NewLine);
uriParts.AppendFormat("Port: {0}{1}", uri.Port, Environment.NewLine);
uriParts.AppendFormat("Path: {0}{1}", uri.LocalPath, Environment.NewLine);
uriParts.AppendFormat("QueryString: {0}{1}", uri.Query, Environment.NewLine);
uriParts.AppendFormat("Path and QueryString: {0}{1}",
uri.PathAndQuery, Environment.NewLine);
uriParts.AppendFormat("Fragment: {0}{1}", uri.Fragment, Environment.NewLine);
uriParts.AppendFormat("Original String: {0}{1}",
uri.OriginalString, Environment.NewLine);
uriParts.AppendFormat("Segments: {0}", Environment.NewLine);
for (int i = 0; i < uri.Segments.Length; i++)
uriParts.AppendFormat(" Segment {0}:{1}{2}",
i, uri.Segments[i], Environment.NewLine);
// GetComponents can be used to get commonly used combinations
// of URI information.
uriParts.AppendFormat("GetComponents for specialized combinations: {0}",
Environment.NewLine);
uriParts.AppendFormat("Host and Port (unescaped): {0}{1}",
uri.GetComponents(UriComponents.HostAndPort,
UriFormat.Unescaped), Environment.NewLine);
UriParts.AppendFormat("HttpRequestUrl (unescaped): {0}{1}",
uri.GetComponents(UriComponents.HttpRequestUrl,
UriFormat.Unescaped), Environment.NewLine);
UriParts.AppendFormat("HttpRequestUrl (escaped): {0}{1}",
uri.GetComponents(UriComponents.HttpRequestUrl,
UriFormat.UriEscaped), Environment.NewLine);
UriParts.AppendFormat("HttpRequestUrl (safeunescaped): {0}{1}",
uri.GetComponents(UriComponents.HttpRequestUrl,
UriFormat.SafeUnescaped), Environment.NewLine);
UriParts.AppendFormat("Scheme And Server (unescaped): {0}{1}",
uri.GetComponents(UriComponents.SchemeAndServer,
UriFormat.Unescaped), Environment.NewLine);
UriParts.AppendFormat("SerializationInfo String (unescaped): {0}{1}",
uri.GetComponents(UriComponents.SerializationInfoString,
UriFormat.Unescaped), Environment.NewLine);
UriParts.AppendFormat("StrongAuthority (unescaped): {0}{1}",
uri.GetComponents(UriComponents.StrongAuthority,
UriFormat.Unescaped), Environment.NewLine);
UriParts.AppendFormat("StrongPort (unescaped): {0}{1}",
uri.GetComponents(UriComponents.StrongPort,
UriFormat.Unescaped), Environment.NewLine);
Console.WriteLine(UriParts.ToString());
}
catch (ArgumentNullException e)
{
Console.WriteLine("Uri string object is a null reference: {0}", e);
}
catch (UriFormatException e)
{
Console.WriteLine("Uri formatting error: {0}", e);
}
}
شما با استفاده از اين متد مي توانيد يك آدرس رو تجزيه كنيد و اجزاي مختلف آن رو بدست بيارين مثل : C:\windows\temp.txt
در ابتدا شما بايد فضاي نام System.IO رو اضافه كنيد
public static void ParsePath(string path)
{
string root = Path.GetPathRoot(path);
string dirName = Path.GetDirectoryName(path);
string fullFileName = Path.GetFileName(path);
string fileExt = Path.GetExtension(path);
string fileNameWithoutExt = Path.GetFileNameWithoutExtension(path);
StringBuilder format = new StringBuilder();
format.Append("ParsePath of {0} breaks up into the following pieces:" +
Environment.NewLine + "\tRoot: {1}" +
Environment.NewLine + "\t");
format.Append("Directory Name: {2}" +
Environment.NewLine + "\tFull File Name: {3}" +
Environment.NewLine + "\t");
format.Append("File Extension: {4}" +
Environment.NewLine + "\tFile Name Without Extension: {5}" +
Environment.NewLine + "");
Console.WriteLine(format.ToString(), path, root, dirName,
fullFileName, fileExt, fileNameWithoutExt);
}
// array of integers to hold values
private int[] a = new int[100];
private int[] b = new int[100];
// number of elements in array
private int x;
// Merge Sort Algorithm
public void sortArray()
{
m_sort( 0, x-1 );
}
public void m_sort( int left, int right )
{
int mid;
if( right > left )
{
mid = ( right + left ) / 2;
m_sort( left, mid );
m_sort( mid+1, right );
merge( left, mid+1, right );
}
}
public void merge( int left, int mid, int right )
{
int i, left_end, num_elements, tmp_pos;
left_end = mid - 1;
tmp_pos = left;
num_elements = right - left + 1;
while( (left <= left_end) && (mid <= right) )
{
if( a[left] <= a[mid] )
{
b[tmp_pos] = a[left];
tmp_pos = tmp_pos + 1;
left = left +1;
}
else
{
b[tmp_pos] = a[mid];
tmp_pos = tmp_pos + 1;
mid = mid + 1;
}
}
while( left <= left_end )
{
b[tmp_pos] = a[left];
left = left + 1;
tmp_pos = tmp_pos + 1;
}
while( mid <= right )
{
b[tmp_pos] = a[mid];
mid = mid + 1;
tmp_pos = tmp_pos + 1;
}
for( i = 0; i < num_elements; i++ )
{
a[right] = b[right];
right = right - 1;
}
}
توی این مثال تقریبا یک اینترنت اکسپلورر کامل ساخته شده !
شمادر این مثال طریقه استفاده از WebBrowser رو یاد می گیرینن.البته خیلی ساده است
private void EmptyCacheFolder(DirectoryInfo folder)
{
//loop through all the files in the folder provided
foreach (FileInfo file in folder.GetFiles())
{
file.Delete();
}
foreach (DirectoryInfo subfolder in folder.GetDirectories())
{
//recursively delete all files and folders in each sub directory
EmptyCacheFolder(subfolder);
}
}
public bool ClearCache()
{
//variable to hold our status
bool isEmpty;
try
{
//call EmptyCacheFolder passing the default internet cache
//folder
EmptyCacheFolder(new DirectoryInfo(Environment.GetFolderPath(Environment.SpecialFolder.InternetCache)));
isEmpty = true;
}
catch
{
isEmpty = false;
}
return isEmpty;
}
خب برای این کار لازمه سطر انتخابی برگردونده بشه تا بعد هر کاری که می خواهی بکنی
protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
txtbox.Text = GridView1.SelectedRow.Cells[2].Text;
HiddenField2.Value = GridView1.SelectedRow.Cells[1].Text;
.
.
.
}
با سلام