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* UIComboBox: Selceted=-1，清除文本

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Sunny 2022-05-24 13:34:38 +08:00
parent b15dbe0486
commit edfc0b1a05
1 changed files with 23 additions and 5 deletions
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28
SunnyUI/Controls/UIComboBox.cs
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@ -26,8 +26,9 @@
* 2022-04-13: V3.1.3 根据Text自动选中SelectIndex * 2022-04-13: V3.1.3 根据Text自动选中SelectIndex
* 2022-04-15: V3.1.3 增加过滤 * 2022-04-15: V3.1.3 增加过滤
* 2022-04-16: V3.1.3 过滤下拉控跟随主题配色 * 2022-04-16: V3.1.3 过滤下拉控跟随主题配色
* 2020-04-20: V3.1.5 过滤文字为空时，下拉框显示所有数据列表 * 2022-04-20: V3.1.5 过滤文字为空时，下拉框显示所有数据列表
* 2020-05-04: V3.1.8 过滤时修复ValueMember绑定值的显示 * 2022-05-04: V3.1.8 过滤时修复ValueMember绑定值的显示
* 2022-05-24: V3.1.9 Selceted=-1，清除文本
******************************************************************************/ ******************************************************************************/
using System; using System;
@ -410,10 +411,18 @@ namespace Sunny.UI
private void Box_SelectedIndexChanged(object sender, EventArgs e) private void Box_SelectedIndexChanged(object sender, EventArgs e)
{ {
SelectTextChange = true; SelectTextChange = true;
if (ListBox.SelectedItem != null && !ShowFilter) if (!ShowFilter)
Text = ListBox.GetItemText(ListBox.SelectedItem); {
if (ListBox.SelectedItem != null)
Text = ListBox.GetItemText(ListBox.SelectedItem);
else
Text = "";
}
SelectTextChange = false; SelectTextChange = false;
SelectedIndexChanged?.Invoke(this, e);
if (!Wana_1)
SelectedIndexChanged?.Invoke(this, e);
} }
public event EventHandler SelectedIndexChanged; public event EventHandler SelectedIndexChanged;
@ -575,11 +584,20 @@ namespace Sunny.UI
{ {
if (!ShowFilter) if (!ShowFilter)
{ {
if (DataSource != null && value == -1 && SelectedIndex > 0)
{
Wana_1 = true;
SelectedIndex = 0;
Wana_1 = false;
}
ListBox.SelectedIndex = value; ListBox.SelectedIndex = value;
} }
} }
} }
private bool Wana_1;
[Browsable(false), Bindable(true), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)] [Browsable(false), Bindable(true), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
[Description("选中项"), Category("SunnyUI")] [Description("选中项"), Category("SunnyUI")]
public object SelectedItem public object SelectedItem