添加项目文件。

2025-09-16 16:06:41 +08:00
parent 0e7807b826
commit 98c65ceb3d
922 changed files with 1009489 additions and 0 deletions
--- a/Szmedi.RvKits/FamilyTools/PageInfo.cs
+++ b/Szmedi.RvKits/FamilyTools/PageInfo.cs
@@ -0,0 +1,103 @@
+namespace Szmedi.RvKits.FamilyTools
+{
+    public class PageInfo<T>
+    {
+        private readonly int pageSize;
+        public List<T> dataSource;
+        public int CurrentIndex { get; set; }
+
+        public int Pagecount { get; set; }
+
+        public PageInfo()
+        {
+            //当前页码
+            CurrentIndex = 1;
+        }
+
+        public PageInfo(List<T> dataSource, int pageSize)
+            : this()
+        {
+            this.dataSource = dataSource;
+            //每页的数目
+            this.pageSize = pageSize;
+            //取商
+            Pagecount = dataSource.Count / pageSize;
+            //如果整除+0，不整除+1
+            Pagecount += dataSource.Count % pageSize != 0 ? 1 : 0;
+        }
+
+        public List<T> GetPageData(JumpOperation jo)
+        {
+            switch (jo)
+            {
+                case JumpOperation.GoHome:
+                    CurrentIndex = 1;
+                    break;
+                case JumpOperation.GoPrePrevious:
+                    if (CurrentIndex > 1)
+                    {
+                        CurrentIndex -= 1;
+                    }
+
+                    break;
+                case JumpOperation.GoNext:
+                    if (CurrentIndex < Pagecount)
+                    {
+                        CurrentIndex += 1;
+                    }
+
+                    break;
+                case JumpOperation.GoEnd:
+                    CurrentIndex = Pagecount;
+                    break;
+                case JumpOperation.GoAny:
+
+                    break;
+            }
+
+            List<T> listPageData = new();
+            try
+            {
+                int pageCountTo = pageSize;
+                //页数等于1并且取余大于0（即只有一页时）
+                if (Pagecount == CurrentIndex && dataSource.Count % pageSize > 0)
+                {
+                    //pageCountTo=当前条目数
+                    pageCountTo = dataSource.Count % pageSize;
+                }
+
+                if (null != dataSource)
+                {
+                    for (int i = 0; i < pageCountTo; i++)
+                    {
+                        //当前页码-1进行循环，比如有32项时，当前第2页，即从Index=20（第一项Index=0）开始循环
+                        if (((CurrentIndex - 1) * pageSize) + i < dataSource.Count)
+                        {
+                            //将该项添加到listPageData
+                            listPageData.Add(dataSource[((CurrentIndex - 1) * pageSize) + i]);
+                        }
+                        else
+                        {
+                            break;
+                        }
+                    }
+                }
+
+                return listPageData;
+            }
+            catch
+            {
+                return listPageData;
+            }
+        }
+    }
+
+    public enum JumpOperation
+    {
+        GoHome = 0,
+        GoPrePrevious = 1,
+        GoNext = 2,
+        GoEnd = 3,
+        GoAny = 4
+    }
+}