1、数据库链接维护：增加去重

Tools/UI/wDbLinkMngr.cs

@@ -105,10 +105,19 @@ namespace Tools.UI
         /// </summary>
         private void AddRow()
         {
+            var note = this.tbNote.Text.Trim();
+            var link = this.tbLink.Text.Trim();
+            //重复判断
+            var isExist = this._db.IsExist($"SELECT COUNT(*) FROM dbo.FTT_DbLinkManager WHERE Note='{note}' AND Link = '{link}'");
+            if (isExist)
+            {
+                Utils.Tip("数据已存在，请勿重复录入！");
+                return;
+            }
             //増行
             var drNew = this._ds.Tables[0].NewRow();
-            drNew["Note"] = this.tbNote.Text;
-            drNew["Link"] = this.tbLink.Text.Trim();
+            drNew["Note"] = note;
+            drNew["Link"] = link;
             this._ds.Tables[0].Rows.Add(drNew);
         }
         /// <summary>