diff --git a/windows/xgboost_sharp_wrapper/xgboost.cs b/windows/xgboost_sharp_wrapper/xgboost.cs
index c1f07044b..ae5f3a205 100644
--- a/windows/xgboost_sharp_wrapper/xgboost.cs
+++ b/windows/xgboost_sharp_wrapper/xgboost.cs
@@ -7,19 +7,37 @@ using System.Runtime.InteropServices;
 
 namespace xgboost_sharp_wrapper
 {
-    
-        
+
+
     public class xgboost
     {
-        private const string dll_path="..\\x64\\Release\\";
+        private const string dll_path = "..\\x64\\Release\\";
 
-        [DllImport(dll_path+"xgboost_wrapper.dll", CallingConvention=CallingConvention.Cdecl)]
+        [DllImport(dll_path + "xgboost_wrapper.dll", CallingConvention = CallingConvention.Cdecl)]
         public static extern IntPtr XGDMatrixCreateFromFile(string fname, int silent);
-public IntPtr SharpXGDMatrixCreateFromFile(string fname, int silent)
+        public IntPtr SharpXGDMatrixCreateFromFile(string fname, int silent)
         {
             return XGDMatrixCreateFromFile(fname, silent);
         }
 
+
+        /*!
+         * \brief set float vector to a content in info
+         * \param handle a instance of data matrix
+         * \param field field name, can be label, weight
+         * \param array pointer to float vector
+         * \param len length of array
+         */
+        [DllImport(dll_path + "xgboost_wrapper.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void XGDMatrixSetFloatInfo(IntPtr handle, string field, IntPtr array, System.UInt32 len);
+
+        [DllImport(dll_path + "xgboost_wrapper.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void XGBoosterSetParam(IntPtr handle, string name, string value);
+        public void SharpXGBoosterSetParam(IntPtr handle, string name, string value)
+        {
+            XGBoosterSetParam(handle,name,value);
+        }
+
         [DllImport(dll_path + "xgboost_wrapper.dll")]
         public static extern IntPtr XGBoosterCreate(IntPtr[] dmats, System.UInt32 len);
         public IntPtr SharpXGBoosterCreate(IntPtr[] dmats, System.UInt32 len)
@@ -42,47 +60,47 @@ public IntPtr SharpXGDMatrixCreateFromFile(string fname, int silent)
         {
             return XGBoosterEvalOneIter(handle, iter, dmats, evnames, len);
         }
-  /*!
-   * \brief make prediction based on dmat
-   * \param handle handle
-   * \param dmat data matrix
-   * \param output_margin whether only output raw margin value
-   * \param len used to store length of returning result
-   */
+        /*!
+         * \brief make prediction based on dmat
+         * \param handle handle
+         * \param dmat data matrix
+         * \param output_margin whether only output raw margin value
+         * \param len used to store length of returning result
+         */
         [DllImport(dll_path + "xgboost_wrapper.dll")]
         public static extern IntPtr XGBoosterPredict(IntPtr handle, IntPtr dmat, int output_margin, ref System.UInt32 len);
-        
+
         public float[] SharpXGBoosterPredict(IntPtr handle, IntPtr dmat, int output_margin, System.UInt32 len)
         {
             IntPtr buf = XGBoosterPredict(handle, dmat, output_margin, ref len);
-            
+
             float[] buffer = new float[len];
 
             Marshal.Copy(buf, buffer, 0, buffer.Length);
 
             return buffer;
         }
-  /*!
-   * \brief load model from existing file
-   * \param handle handle
-   * \param fname file name
-   */
+        /*!
+         * \brief load model from existing file
+         * \param handle handle
+         * \param fname file name
+         */
         [DllImport(dll_path + "xgboost_wrapper.dll")]
         public static extern void XGBoosterLoadModel(IntPtr handle, string fname);
-  /*!
-   * \brief save model into existing file
-   * \param handle handle
-   * \param fname file name
-   */
+        /*!
+         * \brief save model into existing file
+         * \param handle handle
+         * \param fname file name
+         */
         [DllImport(dll_path + "xgboost_wrapper.dll")]
         public static extern void XGBoosterSaveModel(IntPtr handle, string fname);
-  /*!
-   * \brief dump model, return array of strings representing model dump
-   * \param handle handle
-   * \param fmap  name to fmap can be empty string
-   * \param out_len length of output array
-   * \return char *data[], representing dump of each model
-   */
+        /*!
+         * \brief dump model, return array of strings representing model dump
+         * \param handle handle
+         * \param fmap  name to fmap can be empty string
+         * \param out_len length of output array
+         * \return char *data[], representing dump of each model
+         */
         [DllImport(dll_path + "xgboost_wrapper.dll")]
         public static extern string XGBoosterDumpModel(IntPtr handle, string fmap,
                                            System.UInt32 out_len);