下面的示例展示了如何把自定义按钮添加到 AlertControl 中。

两个自定义按钮被添加到 AlertControl.Buttons 集合中。 第一个按钮是常规按钮，在单击它时产生 AlertControl.ButtonClick 事件。 第二个按钮有“选中”和“未选中”两种状态。 单击第二个按钮会引发 AlertControl.ButtonDownChanged 事件。

结果显示如下：

C#CopyCode image复制代码
using DevExpress.XtraBars.Alerter;

// Create a regular custom button.
AlertButton btn1 = new AlertButton(Image.FromFile(@"c:\folder-16x16.png"));
btn1.Hint = "Open file";
btn1.Name = "buttonOpen";
// Create a check custom button.
AlertButton btn2 = new AlertButton(Image.FromFile(@"c:\clock-16x16.png"));
btn2.Style = AlertButtonStyle.CheckButton;
btn2.Down = true;
btn2.Hint = "Alert On";
btn2.Name = "buttonAlert";
// Add buttons to the AlertControl and subscribe to the events to process button clicks
alertControl1.Buttons.Add(btn1);
alertControl1.Buttons.Add(btn2);
alertControl1.ButtonClick += new AlertButtonClickEventHandler(alertControl1_ButtonClick);
alertControl1.ButtonDownChanged += 
    new AlertButtonDownChangedEventHandler(alertControl1_ButtonDownChanged);

// Show a sample alert window.
AlertInfo info = new AlertInfo("New Window", "Text");
alertControl1.Show(this, info);

void alertControl1_ButtonDownChanged(object sender, 
AlertButtonDownChangedEventArgs e) {
    if (e.ButtonName == "buttonOpen") {
        //...
    }
}

void alertControl1_ButtonClick(object sender, AlertButtonClickEventArgs e) {
    if (e.ButtonName == "buttonAlert") {
        //...
    }
}
Visual BasicCopyCode image复制代码
Imports DevExpress.XtraBars.Alerter

' Create a regular custom button.
Dim btn1 As AlertButton = New AlertButton(Image.FromFile("c:\folder-16x16.png"))
btn1.Hint = "Open file"
btn1.Name = "buttonOpen"
' Create a check custom button.
Dim btn2 As AlertButton = New AlertButton(Image.FromFile("c:\clock-16x16.png"))
btn2.Style = AlertButtonStyle.CheckButton
btn2.Down = True
btn2.Hint = "Alert On"
btn2.Name = "buttonAlert"
' Add buttons to the AlertControl and subscribe to the events to process button clicks
alertControl1.Buttons.Add(btn1)
alertControl1.Buttons.Add(btn2)
AddHandler alertControl1.ButtonClick, AddressOf alertControl1_ButtonClick
AddHandler alertControl1.ButtonDownChanged, _ 
AddressOf alertControl1_ButtonDownChanged

' Show a sample alert window.
Dim info As AlertInfo = New AlertInfo("New Window", "Text")
alertControl1.Show(Me, info)

Private Sub alertControl1_ButtonDownChanged(ByVal sender As Object, _ 
ByVal e As AlertButtonDownChangedEventArgs)
    If e.ButtonName = "buttonOpen" Then
        '...
    End If
End Sub

Private Sub alertControl1_ButtonClick(ByVal sender As Object, _ 
ByVal e As AlertButtonClickEventArgs)
    If e.ButtonName = "buttonAlert" Then
        '...
    End If
End Sub