pref: 回车触发搜索如果没有结果，则给出提示

Tools/MyUtils/Utils.cs

@@ -5,6 +5,7 @@ using System.Collections.Generic;
 using System.Configuration;
 using System.Data;
 using System.Diagnostics;
+using System.Drawing;
 using System.IO;
 using System.Linq;
 using System.Security.Cryptography;
@@ -460,6 +461,39 @@ namespace Tools.MyUtils
             new wMsgBox().Show(msg, width, height);
         }
         /// <summary>
+        /// Toast提示(自动关闭)
+        /// </summary>
+        /// <param name="msg">消息</param>
+        /// <param name="durationMs">显示时长(毫秒)，默认2秒</param>
+        public static void Toast(string msg, int durationMs = 2000)
+        {
+            var timer = new System.Windows.Forms.Timer { Interval = durationMs };
+            var form = new Form
+            {
+                FormBorderStyle = FormBorderStyle.None,
+                StartPosition = FormStartPosition.CenterScreen,
+                BackColor = Color.FromArgb(255, 255, 225),
+                Size = new Size(250, 50),
+                TopMost = true,
+                ShowInTaskbar = false,
+            };
+            form.Controls.Add(new Label
+            {
+                Text = msg,
+                Dock = DockStyle.Fill,
+                TextAlign = ContentAlignment.MiddleCenter,
+                Font = new Font("微软雅黑", 9F),
+            });
+            timer.Tick += (s, e) =>
+            {
+                timer.Stop();
+                form.Close();
+                timer.Dispose();
+            };
+            timer.Start();
+            form.Show();
+        }
+        /// <summary>
         /// 是否提示
         /// </summary>
         /// <param name="msg"></param>

Tools/UI/wAutoClass.cs

@@ -69,6 +69,9 @@ namespace Tools.UI
                     return;
 
                 this.RefrashData(false);
+
+                if (lsbTableInfo.Items.Count == 0)
+                    Utils.Toast("未找到匹配结果");
             }
         }
 

Tools/UI/wDBTableDevelopTools.cs

@@ -1208,7 +1208,7 @@ namespace Tools.UI
             }
             else
             {
-                Utils.Tip(notFoundMessage);
+                Utils.Toast(notFoundMessage);
             }
         }
         #endregion

Tools/UI/wModuleManager.cs

@@ -213,7 +213,8 @@ namespace Tools.UI
         {
             if (e.KeyCode == Keys.Enter)
             {
-                this.SetTreeNodeBackColor(this.myTreeView1.Nodes, this.tbSearch.Text.Trim());
+                if (!this.SetTreeNodeBackColor(this.myTreeView1.Nodes, this.tbSearch.Text.Trim()))
+                    Utils.Toast("未找到匹配结果");
             }
         }
         /// <summary>
@@ -221,13 +222,17 @@ namespace Tools.UI
         /// </summary>
         /// <param name="nodes">树节点</param>
         /// <param name="SearchText">查询字串</param>
-        private void SetTreeNodeBackColor(TreeNodeCollection nodes, string SearchText)
+        /// <returns>是否找到匹配项</returns>
+        private bool SetTreeNodeBackColor(TreeNodeCollection nodes, string SearchText)
         {
+            bool found = false;
             foreach (TreeNode n in nodes)
             {
                 //查询条件不为空并且包含查询字符，则设置背景色
                 bool IsSearched = !string.IsNullOrEmpty(SearchText) && n.Text.Contains(SearchText);
                 n.BackColor = IsSearched ? Color.LightBlue : Color.White;
+                if (IsSearched)
+                    found = true;
                 #region 节点展开与折叠
 
                 if (IsSearched)
@@ -245,8 +250,10 @@ namespace Tools.UI
 
                 #endregion
                 //递归子节点
-                this.SetTreeNodeBackColor(n.Nodes, SearchText);
+                if (this.SetTreeNodeBackColor(n.Nodes, SearchText))
+                    found = true;
             }
+            return found;
         }
         /// <summary>
         /// 展开查询节点的父节点