Add WhereColumns(+2)

Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs

@@ -423,6 +423,25 @@ namespace SqlSugar
         {
             return WhereColumns(new List<Dictionary<string, object>> { dictionary });
         }
+        public ISugarQueryable<T> WhereColumns(Dictionary<string, object> columns, bool ignoreDefaultValue) 
+        {
+            if (ignoreDefaultValue == false || columns == null)
+            {
+                return WhereColumns(columns);
+            }
+            else 
+            {
+                var newColumns = new Dictionary<string, object>();
+                foreach (var item in columns)
+                {
+                    if (!UtilMethods.IsDefaultValue(item.Value)) 
+                    {
+                        newColumns.Add(item.Key, item.Value);
+                    }
+                }
+                return WhereColumns(newColumns);
+            }
+        }
         public ISugarQueryable<T> WhereColumns(List<Dictionary<string, object>> list)
         {
             List<IConditionalModel> conditionalModels = new List<IConditionalModel>();

Src/Asp.Net/SqlSugar/Interface/IQueryable.cs

@@ -54,6 +54,7 @@ namespace SqlSugar
         ISugarQueryable<T> WhereClassByPrimaryKey(List<T> list);
         ISugarQueryable<T> WhereClassByPrimaryKey(T data) ;
         ISugarQueryable<T> WhereColumns(List<Dictionary<string, object>> columns);
+        ISugarQueryable<T> WhereColumns(Dictionary<string, object> columns, bool ignoreDefaultValue);
         ISugarQueryable<T> WhereColumns(Dictionary<string, object> columns);
         ISugarQueryable<T> TranLock(DbLockType LockType = DbLockType.Wait);
         ISugarQueryable<T> Where(Expression<Func<T, bool>> expression);

Src/Asp.Net/SqlSugar/Utilities/UtilMethods.cs

@@ -17,6 +17,12 @@ namespace SqlSugar
     public class UtilMethods
     {
 
+        internal static bool IsDefaultValue(object value)
+        {
+            if (value == null) return true;
+            return value.Equals(UtilMethods.GetDefaultValue(value.GetType()));
+        }
+
         internal static DateTime ConvertFromDateTimeOffset(DateTimeOffset dateTime)
         {
             if (dateTime.Offset.Equals(TimeSpan.Zero))