保存在应用程序图像文件夹PNG文件，而无需使用savedialogfile [英] save png file in application image folder without using savedialogfile

问题描述

我使用savedialogfile.But保存PNG文件，我想将其保存在应用IMG folder.my code是如下：

 如果（lastSnapshot！= NULL）// writableBitmap对象lastSnapshot
        {
            VAR DLG =新SaveFileDialog（）;
            dlg.DefaultExt =png格式;
            dlg.Filter =PNG文件| *巴纽;
            如果（dlg.ShowDialog（）==真）
            {
                使用（VAR pngStream = GetPngStream（lastSnapshot））//返回流类型
                使用（var文件= dlg.OpenFile（））
                {
                    字节[] = binaryData新的字节[pngStream.Length]
                    长读取动作= pngStream.Read（binaryData，0，（INT）pngStream.Length）;
                    file.Write（binaryData，0，（int）的pngStream.Length）;
                    file.Flush（）;
                    file.Close（）;
                }
            }
        }
 

怎么办it.anyone帮助我大大AP preciated.thanks提前。<一个href=\"http://stackoverflow.com/questions/13603030/save-png-file-in-application-image-folder-in-silverlight\">save在为png图像应用程序文件夹文件在Silverlight

解决方案

 如果（lastSnapshot！= NULL）// writableBitmap对象lastSnapshot
{
     使用（VAR pngStream = GetPngStream（lastSnapshot））//返回流类型
     使用（var文件= File.Create（Path.Combine（ImageFolder，ImageName.png）））
     {
         字节[] = binaryData新的字节[pngStream.Length]
         长读取动作= pngStream.Read（binaryData，0，（INT）pngStream.Length）;
         file.Write（binaryData，0，（int）的pngStream.Length）;
     }
}
 

i save a png file using savedialogfile.But i want to save it in application IMG folder.my code is as follows:

if (lastSnapshot != null)//writableBitmap object lastSnapshot
        {
            var dlg = new SaveFileDialog();
            dlg.DefaultExt = ".png";
            dlg.Filter = "PNG File|*.png";
            if (dlg.ShowDialog() == true)
            {
                using (var pngStream = GetPngStream(lastSnapshot))//return Stream type 
                using (var file = dlg.OpenFile())
                {
                    byte[] binaryData = new Byte[pngStream.Length];
                    long bytesRead = pngStream.Read(binaryData, 0, (int)pngStream.Length);
                    file.Write(binaryData, 0, (int)pngStream.Length);
                    file.Flush();
                    file.Close();
                }
            }
        }

how to do it.anyone helps me greatly appreciated.thanks in advance.save png file in application image folder in silverlight

解决方案

if (lastSnapshot != null)//writableBitmap object lastSnapshot
{
     using (var pngStream = GetPngStream(lastSnapshot))//return Stream type 
     using (var file = File.Create(Path.Combine("ImageFolder", "ImageName.png")))
     {
         byte[] binaryData = new Byte[pngStream.Length];
         long bytesRead = pngStream.Read(binaryData, 0, (int)pngStream.Length);
         file.Write(binaryData, 0, (int)pngStream.Length);
     }
}

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