diff --git a/插件库/Lskj.Main/FrmSwap.cs b/插件库/Lskj.Main/FrmSwap.cs
index 54f41d5..9dddc6d 100644
--- a/插件库/Lskj.Main/FrmSwap.cs
+++ b/插件库/Lskj.Main/FrmSwap.cs
@@ -428,10 +428,19 @@ namespace Lskj.Main
                         ERPInfo.Instance.UserId = userId;
                         ERPInfo.Instance.UserName = userName;
 
-                        this.Close();
                         IniHelper.Write("isRefresh", "1");
-                        Manager.ReStartMain(true);
-                        //this.DialogResult = System.Windows.Forms.DialogResult.OK;
+                        if (Manager.ExternalMainShell == null)
+                        {
+                            this.Close();
+                            Manager.ReStartMain(true);
+                        }
+                        else
+                        {
+                            // WPF 已接管主窗口生命周期：只返回切换成功，
+                            // 由 WPF 在当前模态窗体关闭后重建主框架。
+                            this.DialogResult = System.Windows.Forms.DialogResult.OK;
+                            this.Close();
+                        }
                         break;
                     case 1: // 密码不正确
                         MessageUtil.Show(ResourceKeys.NameOrPasswordError);