diff --git a/EMS_Forms/Form_OnlineTask.cs b/EMS_Forms/Form_OnlineTask.cs
index 064c22f..5234fa3 100644
--- a/EMS_Forms/Form_OnlineTask.cs
+++ b/EMS_Forms/Form_OnlineTask.cs
@@ -92,7 +92,7 @@
                         flyToTask(e.RowIndex);
                         Form_TaskInfo p = new Form_TaskInfo(globeControl1, taskInfoDt);
                         p.showParentForm += new Form_TaskInfo.Handle(showThisForm);//改变值的事件  
-                        p.Show();
+                        p.ShowDialog();
                     }
                     catch (Exception ex)
                     {

diff --git a/EMS_Forms/Form_OnlineTask.cs b/EMS_Forms/Form_OnlineTask.cs
index 064c22f..5234fa3 100644
--- a/EMS_Forms/Form_OnlineTask.cs
+++ b/EMS_Forms/Form_OnlineTask.cs
@@ -92,7 +92,7 @@
                         flyToTask(e.RowIndex);
                         Form_TaskInfo p = new Form_TaskInfo(globeControl1, taskInfoDt);
                         p.showParentForm += new Form_TaskInfo.Handle(showThisForm);//改变值的事件  
-                        p.Show();
+                        p.ShowDialog();
                     }
                     catch (Exception ex)
                     {
diff --git a/EMS_Forms/Form_TaskManager.cs b/EMS_Forms/Form_TaskManager.cs
index d6b130d..b7a3c11 100644
--- a/EMS_Forms/Form_TaskManager.cs
+++ b/EMS_Forms/Form_TaskManager.cs
@@ -39,7 +39,7 @@
         private void button_new_Click(object sender, EventArgs e)
         {
             Form_EditTask form = new Form_EditTask(globeControl1);
-            form.Show();
+            form.ShowDialog();
             Close();
         }
 
@@ -486,7 +486,7 @@
                     flyToTask(row, taskStateInt);
                     Form_TaskInfo p = new Form_TaskInfo(globeControl1, taskInfoDt);
                     p.showParentForm += new Form_TaskInfo.Handle(showThisForm);//改变值的事件  
-                    p.Show();
+                    p.ShowDialog();
                 }
                 catch (Exception ex)
                 {