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[英]WinForms User Control has ComboBox that causes ToolStripDropDown to auto-close
[英]Winforms ComboBox User Control Binding
我有一个从Combobox控件继承的用户控件。 我想将数据绑定到用户控件的构造函数中。 但是,当我将其添加到表单并运行项目时,它会显示重复的项目。
当我将控件添加到Winform时,它在表单的Designer文件中添加项,而当我运行项目时,它又再次添加到用户控件的构造函数中。
public partial class CheckSeriesBox : ComboBox
{
private static List<string> CheckSeries;
public CheckSeriesBox()
{
InitializeComponent();
CheckSeries = new List<string>();
SetCheckSeries();
this.Items.AddRange(CheckSeries.ToArray());
this.SelectedIndex = 0;
}
public static List<string> SetCheckSeries()
{
CheckSeries.Add("A");
CheckSeries.Add("B");
}
}
public partial class CheckSeriesBox : ComboBox
{
private static List<string> CheckSeries;
public CheckSeriesBox()
{
InitializeComponent();
CheckSeries = new List<string>();
SetCheckSeries();
if (DesignMode)
{
this.Items.AddRange(CheckSeries.ToArray());
}
}
public static List<string> SetCheckSeries()
{
CheckSeries.Add("A");
CheckSeries.Add("B");
}
protected new bool DesignMode
{
get
{
if (base.DesignMode)
{
return true;
}
else
{
Control parent = this.Parent;
while ((parent != null))
{
System.ComponentModel.ISite site = parent.Site;
if ((site != null) && site.DesignMode)
{
return true;
}
parent = parent.Parent;
}
return false;
}
}
}
}
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