diff --git a/source/mainwindow.cpp b/source/mainwindow.cpp
index e0da2ed..a29bb20 100644
--- a/source/mainwindow.cpp
+++ b/source/mainwindow.cpp
@@ -116,16 +116,18 @@ void MainWindow::showMessageDialog(MessageDialogType type,const QString& strTitl
     }
 
     m_pMessageDialog->setMessage(type, strTitle, strContent);
-    int nX = this->geometry().x() + (this->width() - m_pMessageDialog->width()) * 0.5;
-    int nY = this->geometry().y() + (this->height() - m_pMessageDialog->height()) * 0.5;
-    m_pMessageDialog->move(nX, nY);
+    int nX = (this->width() - m_pMessageDialog->width()) * 0.5;
+    int nY = (this->height() - m_pMessageDialog->height()) * 0.5;
 
     if(QSysInfo::kernelType() == "linux")
         MaskManager::instance()->showMask(m_pMessageDialog);
-    // if(type == type_question)
-    //     m_pMessageDialog->exec();
-    // else
-    //     m_pMessageDialog->show();
+    else
+    {
+        nX += this->geometry().x();
+        nY += this->geometry().y();
+    }
+
+    m_pMessageDialog->move(nX, nY);
     m_pMessageDialog->exec();
 }
 void MainWindow::hideMessageDialog()
@@ -162,20 +164,26 @@ void MainWindow::onActionTrigger_connect()
         connect(m_pConnectionDialog, &ConnectionDialog::finished, this, [=]{ MaskManager::instance()->hideMask(m_pConnectionDialog);});
     }
 
-    int nX = this->geometry().x() + (this->width() - m_pConnectionDialog->width()) * 0.5;
-    int nY = this->geometry().y() + (this->height() - m_pConnectionDialog->height()) * 0.5;
-    m_pConnectionDialog->move(nX, nY);
+    int nX = (this->width() - m_pConnectionDialog->width()) * 0.5;
+    int nY = (this->height() - m_pConnectionDialog->height()) * 0.5;
     // QPoint centerPos = this->mapToGlobal(this->rect().center());
     // centerPos -= QPoint(m_pConnectionDialog->width()/2, m_pConnectionDialog->height()/2);
     // m_pConnectionDialog->move(centerPos);
 
     if(QSysInfo::kernelType() == "linux")
     {
+        //因为linux下子窗口去掉了Dialog属性，所以只需要按照相对坐标计算即可(this->geometry()的x和y值在Linux的多屏环境下计算也不准)
+        m_pConnectionDialog->move(nX, nY);
         MaskManager::instance()->showMask(m_pConnectionDialog);
         m_pConnectionDialog->show();
     }
     else
+    {
+        nX += this->geometry().x();
+        nY += this->geometry().y();
+        m_pConnectionDialog->move(nX, nY);
         m_pConnectionDialog->exec();
+    }
 }
 void MainWindow::onActionTrigger_disconnect()
 {
@@ -197,18 +205,24 @@ void MainWindow::onActionTrigger_addModel()
         connect(m_pModelInfoDialog, &ModelInfoEditDialog::finished, this, [=]{ MaskManager::instance()->hideMask(m_pModelInfoDialog);});
     }
 
-    int nX = this->geometry().x() + (this->width() - m_pModelInfoDialog->width()) * 0.5;
-    int nY = this->geometry().y() + (this->height() - m_pModelInfoDialog->height()) * 0.5;
-    m_pModelInfoDialog->move(nX, nY);
+    int nX = (this->width() - m_pModelInfoDialog->width()) * 0.5;
+    int nY = (this->height() - m_pModelInfoDialog->height()) * 0.5;
+
     m_pModelInfoDialog->setState(DS_New);
 
     if(QSysInfo::kernelType() == "linux")
     {
         MaskManager::instance()->showMask(m_pModelInfoDialog);
+        m_pModelInfoDialog->move(nX, nY);
         m_pModelInfoDialog->show();
     }
     else
+    {
+        nX += this->geometry().x();
+        nY += this->geometry().y();
+        m_pModelInfoDialog->move(nX, nY);
         m_pModelInfoDialog->exec();
+    }
 }
 void MainWindow::onActionTrigger_removeModel()
 {
@@ -243,18 +257,23 @@ void MainWindow::onActionTrigger_addGroup(int modelID)
         connect(m_pGroupSelectionDialog, &GroupSelectionDialog::finished, this, [=]{ MaskManager::instance()->hideMask(m_pGroupSelectionDialog);});
     }
 
-    int nX = this->geometry().x() + (this->width() - m_pGroupSelectionDialog->width()) * 0.5;
-    int nY = this->geometry().y() + (this->height() - m_pGroupSelectionDialog->height()) * 0.5;
-    m_pGroupSelectionDialog->move(nX, nY);
+    int nX = (this->width() - m_pGroupSelectionDialog->width()) * 0.5;
+    int nY = (this->height() - m_pGroupSelectionDialog->height()) * 0.5;
     m_pGroupSelectionDialog->setModel(modelID);
 
     if(QSysInfo::kernelType() == "linux")
     {
         MaskManager::instance()->showMask(m_pGroupSelectionDialog);
+        m_pGroupSelectionDialog->move(nX, nY);
         m_pGroupSelectionDialog->show();
     }
     else
+    {
+        nX += this->geometry().x();
+        nY += this->geometry().y();
+        m_pGroupSelectionDialog->move(nX, nY);
         m_pGroupSelectionDialog->exec();
+    }
 }
 
 void MainWindow::onSIG_errorFromDBManger(const QString& strConnectionName, const QString& error)
@@ -321,15 +340,20 @@ void MainWindow::onSIG_openAttributeSelector()
         connect(m_pAttributeSelector, &AttributeSelector::finished, this, [=]{ MaskManager::instance()->hideMask(m_pGroupSelectionDialog);});
     }
 
-    int nX = this->geometry().x() + (this->width() - m_pAttributeSelector->width()) * 0.5;
-    int nY = this->geometry().y() + (this->height() - m_pAttributeSelector->height()) * 0.5;
-    m_pAttributeSelector->move(nX, nY);
+    int nX = (this->width() - m_pAttributeSelector->width()) * 0.5;
+    int nY = (this->height() - m_pAttributeSelector->height()) * 0.5;
 
     if(QSysInfo::kernelType() == "linux")
     {
         MaskManager::instance()->showMask(m_pAttributeSelector);
+        m_pAttributeSelector->move(nX, nY);
         m_pAttributeSelector->show();
     }
     else
+    {
+        nX += this->geometry().x();
+        nY += this->geometry().y();
+        m_pAttributeSelector->move(nX, nY);
         m_pAttributeSelector->exec();
+    }
 }
diff --git a/ui/attributeSelector.ui b/ui/attributeSelector.ui
index 41977b6..f1f0059 100644
--- a/ui/attributeSelector.ui
+++ b/ui/attributeSelector.ui
@@ -11,7 +11,11 @@
    </rect>
   </property>
   <property name="windowTitle">
-   <string>Form</string>
+   <string>属性选择器</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resource/PowerModeler.qrc">
+    <normaloff>:/img/images/icon_addItem.png</normaloff>:/img/images/icon_addItem.png</iconset>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <property name="spacing">
diff --git a/ui/connectionDialog.ui b/ui/connectionDialog.ui
index ab5188b..dbda822 100644
--- a/ui/connectionDialog.ui
+++ b/ui/connectionDialog.ui
@@ -18,7 +18,24 @@
     <normaloff>:/img/images/icon_database.png</normaloff>:/img/images/icon_database.png</iconset>
   </property>
   <property name="styleSheet">
-   <string notr="true"/>
+   <string notr="true">QTableView
+{
+	outline:0px;
+}
+QTableView::item
+{
+	border:0px;
+    background-color:transparent;
+}
+QTableView::item:hover
+{
+	background-color:transparent;
+}
+QTableView::item:selected
+{
+    color:rgb(0,0,0);
+    background-color:rgb(211, 241, 250);
+}</string>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout_3">
    <property name="spacing">