Characters that you not use in sharepoint fields and sites. function

This function helps you to validate a internal site name or field name, how?
This Microsoft article helps you to understand http://support.microsoft.com/default.aspx?scid=kb;en-us;905231

This functions returns a string using those rules:

private static string ValidateSiteName(string toValidateName)
{
StringBuilder sb = new StringBuilder();
sb.Append(toValidateName.Trim());

for (int i = 0; i < arrayCharacters.Length; i++)
sb.Replace(arrayCharacters[i], "");
while (sb.Length != 0 && (sb[0] == '_' sb[0] == ' '))
sb.Remove(0, 1);
while (sb.Length != 0 && sb[sb.Length - 1] == '.')
{
sb.Remove(sb.Length - 1, 1);
while (sb.Length > 0 && sb[sb.Length - 1] == ' ')
sb.Remove(sb.Length - 1, 1);
}
return sb.Length > 50 ? sb.ToString().Remove(50) : sb.ToString();
}

Or use this,

public static string ValidateSiteName(string toValidateName)
{
StringBuilder sb = new StringBuilder();
sb.Append(toValidateName);
string[] arrayCharacters = { "~", "#", "%", "&", "*",
"{", "}",@"\", ":", "<", ">", "?", "/", "+", "", Convert.ToString('"') };
for (int i = 0; i < arrayCharacters.Length; i++)
sb.Replace(arrayCharacters[i],"_");
if (Convert.ToString(sb[0]) == "_")
sb.Replace(sb[0], ' ');
return sb.ToString();
}

enjoy!!!

How to get SharePoint users from peoplePicker?

Get peoplePicker string text, and convert it to an int array list of users’ index

public static int[] GetUserIndexesFromPeoplePicker(string users)
{
int nUsers;
int[] indexes;
if (users == null users.Trim().Length == 0)
return null;
string[] splited = users.Split(new char[] { '#', ';' },
StringSplitOptions.RemoveEmptyEntries);
if (splited.Length < 2 splited.Length % 2 != 0)
return null;
nUsers = splited.Length / 2;
indexes = new int[nUsers];
for (int i = 0, j = 0; j < nUsers; i += 2, ++j)
indexes[j] = int.Parse(splited[i]);
return indexes;
}

Or, get a string text from peoplePicker and convert it to a string array list of login names,

public static string[] GetUserNamesFromPeoplePicker(string users)
{
int nUsers;
string[] userNames;
if (users == null users.Trim().Length == 0)
return null;
string[] splited = users.Split(new char[] { '#', ';' },
StringSplitOptions.RemoveEmptyEntries);
if (splited.Length < 2 splited.Length % 2 != 0)
return null;
nUsers = splited.Length / 2;
userNames = new string[nUsers];
for (int i = 1, j = 0; j < nUsers; i += 2, ++j)
userNames[j] = splited[i];
return userNames;
}

Enjoy!!!

SharePoint Escaped Characters (Converter Functions) NEW VERSION

SharePoint Escaped Function

This stuff is very useful to control a Internal Name of the fields,
or verify the Internal Name from the Display Name in a list.

It’s usual, the internal names of the fields do not have more than 32 characters.

The string array list with all characters

private static string[] charactersArrayString =

{"ã","á","à","â","ä","Ã","Á","À","Â","Ä","é","è","ê","ë", "É","È",

"Ê","Ë","í","ì","î","ï","Í","Ì","Î","Ï","ó","ò",
"ô","ö","õ","Ò","Ó","Ô","Ö","Õ","ú","ù","û","ü","Ù","Ú",
"Û","Ü","ç","Ç","ñ","Ñ","ª","º","(",")","!",@"\",@",","$",
"%","&", "/","=","?","@","£","§","{","[","]","}","?","»",
"«","»","~","+","*",";","","¨",":"," ","-"};

The function to create or guess what is the field name

public static string EscapedSpecialCharacters(string myTextToConvert)
{
foreach (string myCaracter in charactersArrayString)
if (myTextToConvert.Contains(myCaracter))
myTextToConvert = myTextToConvert.Replace(myCaracter,
myHexFunctionHelper(myCaracter)); return myTextToConvert.Length > 32 ?
myTextToConvert.Remove(32) : myTextToConvert;
}

Enjoy!!!

Get icon by file name (web part function)

This function obtains the extension of a file and returns a icon of Image gallery.

This stuff is very useful on custom WebParts to organize documents.

public static string GetIconByName(string myItemName)

{

string extension = string.Empty;

char[] arr = myItemName.ToCharArray();

int index=0;

for(int i = 0; i <>

if(arr[i]=='.')

index=i;

for(int j = index+1; j <>

extension+=arr[j];

if(File.Exists(Path.Combine(SPUtility.GetGenericSetupPath(@"template\images"),

string.Concat("IC", extension.ToUpper(), ".GIF"))))

return string.Concat("IC",

extension.ToUpper(), ".GIF");

else

{

return "ICgen.GIF";

}

}

SharePoint Escape Characters (Converter Functions)

SharePoint Escaped Function
This stuff is very useful to control a InternalName of the field, or verify the InternalName from the DisplayName in a list.

String format: “_x00” + + “_”


private string sharepointEscapedCharactersConverter(string myTextToConvert)
{
string[] charactersArrayString = {"ã","á","à","â","ä","Ã","Á",
"À","Â","Ä","é","è","ê","ë","É","È","Ê","Ë","í","ì","î","ï",
"Í","Ì","Î","Ï","ó","ò","ô","ö","õ","Ò","Ó","Ô","Ö","Õ","ú",
"ù","û","ü","Ù","Ú","Û","Ü","ç","Ç","ñ","Ñ","ª","º","(",")",
"!",@"\",@",","$","%","&","/","=","?","@","£","§","{","[",
"]","}","?","»","«","»","~","+","*",";","","¨",":"," "};

foreach (string myCharacter in charactersArrayString)
{
if (myTextToConvert.Contains(myCharacter))
{
myTextToConvert = myTextToConvert.Replace(myCharacter, myHexFunctionHelp(myCharacter));
}
}
return myTextToConvert;
}

private string myHexFunctionHelp(string charValue)
{
string myHexString = BitConverter.ToString(Encoding.Default.GetBytes(charValue));
string sharepointStartEscaped = "_x00";
string sharepointFinalEscaped = "_";
string result = sharepointStartEscaped + myHexString + sharepointFinalEscaped;
return result.ToLower();
}
ex:
sharepointEscapedCharactersConverter("Vários Números");
return “V_x00e1_rios_x0020_N_x00fa_meros”

URL-encoded Function
private string urlEncodedFunction(string myString)
{
string converted = HttpUtility.UrlEncode(myString);
return converted;
}


HTML-encoded Function

private string htmlEncodedFunction(string myString)
{
string converted = BitConverter.ToString(Encoding.Default.GetBytes(myString));
return converted;
}