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* UITabControl: 修复了SelectedIndex=-1时的报错

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Sunny 2024-11-29 09:35:54 +08:00
parent f831a92cf7
commit 98d280d9f0
2 changed files with 5 additions and 4 deletions
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3
SunnyUI/Controls/UITabControl.cs
View File

@ -33,9 +33,9 @@
* 2023-05-12: V3.3.6 重构DrawString函数
* 2023-11-06: V3.5.2 重构主题
* 2023-12-13: V3.6.2 优化UIPage的Init和Final加载逻辑
* 2024-11-29: V3.8.0 修复了SelectedIndex=-1时的报错
******************************************************************************/
using Sunny.UI.Win32;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
@ -43,6 +43,7 @@ using System.ComponentModel;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
using Sunny.UI.Win32;
namespace Sunny.UI
{

6
SunnyUI/Controls/UITabControlHelper.cs
View File

@ -100,7 +100,7 @@ namespace Sunny.UI
{
if (pageIndex < 0) return false;
if (PageItems.TryGetValue(tabControl.SelectedTab, out var fromPage))
if (tabControl.SelectedTab != null && PageItems.TryGetValue(tabControl.SelectedTab, out var fromPage))
{
bool isCancel = fromPage.OnPageDeselecting();
if (isCancel) return false;
@ -122,7 +122,7 @@ namespace Sunny.UI
{
if (pageGuid == Guid.Empty) return false;
if (PageItems.TryGetValue(tabControl.SelectedTab, out var fromPage))
if (tabControl.SelectedTab != null && PageItems.TryGetValue(tabControl.SelectedTab, out var fromPage))
{
bool isCancel = fromPage.OnPageDeselecting();
if (isCancel) return false;
@ -142,7 +142,7 @@ namespace Sunny.UI
public UIPage GetPage(TabPage tabPage)
{
if (PageItems.TryGetValue(tabControl.SelectedTab, out var uiPage))
if (tabControl.SelectedTab != null && PageItems.TryGetValue(tabControl.SelectedTab, out var uiPage))
return uiPage;
return null;
}