//get model, call a GetPositionFormatDot(model) to get a position of last dot and add to it chars of format. Return string with file format like ".png"
public string GetFileFormat(IAddDoc model)
{
string format = " ";
for (int i = GetPosionOfFormatDot(model); i < model.Document.FileName.ToCharArray().Count(); i++)
{
format += model.Document.FileName.ToCharArray()[i];
}
return(format);
}
//get model and return a position of a last dot in name of file
private int GetPosionOfFormatDot(IAddDoc model)
{
int position = 0;
for (int i = 0; i < model.Document.FileName.ToCharArray().Count(); i++)
{
if (model.Document.FileName.ToCharArray()[i] == '.')
{
position = i;
}
}
return(position);
}
