float? BUG

Src/Asp.Net/SqlServerTest/BugTest/Bug1.cs

@@ -50,7 +50,8 @@ SqlFunc.Contains(u.BuildName, keyword) || SqlFunc.IsNullOrEmpty(keyword)))
 }).OrderBy((r) => r.RoomNumber, type: OrderByType.Desc).ToPageListAsync(1, 2).Wait();
 
             GetInstance().Updateable<Student>().UpdateColumns(it =>
-            new Student() {
+            new Student()
+            {
                 Name = "a".ToString(),
                 CreateTime = DateTime.Now.AddDays(-1)
 
@@ -62,6 +63,21 @@ SqlFunc.Contains(u.BuildName, keyword) || SqlFunc.IsNullOrEmpty(keyword)))
               JoinType.Left,st.SchoolId==sc.Id&&st.CreateTime==DateTime.Now.AddDays(-1)
             })
       .Where(st => st.Name == "jack").ToList();
+
+
+            GetInstance().Updateable<BugStudent>().Where(it => true).UpdateColumns(it => new BugStudent() { Float = 11 }).ExecuteCommand();
+           var reslut= GetInstance().Queryable<BugStudent>().ToList();
+        }
+
+
+        [SugarTable("student")]
+        public class BugStudent
+        {
+            [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+            public int Id { get; set; }
+            public string name { get; set; }
+            public float? Float { get; set; }
+
         }
         public class MainTable
         {

Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataReaderEntityBuilder.cs

@@ -53,6 +53,7 @@ namespace SqlSugar
         private static readonly MethodInfo getTime = typeof(IDataRecordExtensions).GetMethod("GetTime");
         private static readonly MethodInfo getConvertDecimal = typeof(IDataRecordExtensions).GetMethod("GetConvertDecimal");
         private static readonly MethodInfo getConvertDouble = typeof(IDataRecordExtensions).GetMethod("GetConvertDouble");
+        private static readonly MethodInfo getConvertDoubleToFloat = typeof(IDataRecordExtensions).GetMethod("GetConvertDoubleToFloat");
         private static readonly MethodInfo getConvertGuid = typeof(IDataRecordExtensions).GetMethod("GetConvertGuid");
         private static readonly MethodInfo getConvertInt16 = typeof(IDataRecordExtensions).GetMethod("GetConvertInt16");
         private static readonly MethodInfo getConvertInt32 = typeof(IDataRecordExtensions).GetMethod("GetConvertInt32");
@@ -265,6 +266,9 @@ namespace SqlSugar
                         method = isNullableType ? getConvertDouble : getDouble;
                     else
                         method = isNullableType ? getConvertFloat : getFloat;
+                    if (dbTypeName == "float" && isNullableType && bindProperyTypeName == "single") {
+                        method = getConvertDoubleToFloat;
+                    }
                     break;
                 case CSharpDataType.Guid:
                     CheckType(bind.GuidThrow, bindProperyTypeName, validPropertyName, propertyName);

Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs

@@ -95,6 +95,18 @@ namespace SqlSugar
             return result;
         }
 
+
+        public static float? GetConvertDoubleToFloat(this IDataRecord dr, int i)
+        {
+            if (dr.IsDBNull(i))
+            {
+                return null;
+            }
+            var result = dr.GetDouble(i);
+            return Convert.ToSingle(result);
+        }
+
+
         public static Guid? GetConvertGuid(this IDataRecord dr, int i)
         {
             if (dr.IsDBNull(i))