/// <summary>
/// 属性窗属性值更改事件
/// 当是否使用缺省文本属性改变时，保存是否使用缺省文本设置
/// 当文本属性更改时，更新控件文本属性（因为不会自动更新）
/// </summary>
/// <param name="s"></param>
/// <param name="e"></param>
private void propertyGrid1_PropertyValueChanged(object s, System.Windows.Forms.PropertyValueChangedEventArgs e)
{
bool boolOld = false;
bool boolNew = false;
//是否使用缺省文本属性
if (e.ChangedItem.Label == "IsUseDefaultText")
{
boolOld = (bool)e.OldValue;
boolNew = (bool)e.ChangedItem.Value;
}
//展开文本属性
else if (e.ChangedItem.Label == "ControlText")
{
ControlText OldText = (ControlText)e.OldValue;
ControlText NewText = (ControlText)e.ChangedItem.Value;
OwnControl ownControl = (OwnControl)this.propertyGrid1.SelectedObject;
ownControl.ControlText = NewText;
boolOld = OldText.IsUseDefaultText;
boolNew = NewText.IsUseDefaultText;
}
//文本属性
else if (e.ChangedItem.Label == "Text")
{
OwnControl ownControl = (OwnControl)this.propertyGrid1.SelectedObject;
ControlText NewText = new ControlText((string)e.ChangedItem.Value, ownControl.ControlText.IsUseDefaultText);
ownControl.ControlText = NewText;
}
//保存到Xml文件
if (boolOld != boolNew)
{
design.SaveIsUseDefaultTextSetting(this.cboControlList.Text, boolNew);
}
}
public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType)
{
if (destinationType == typeof(System.String) && value is ControlText)
{
ControlText ct = (ControlText)value;
string str = ct.Text + "," + ct.IsUseDefaultText.ToString();
return(str);
}
return(base.ConvertTo(context, culture, value, destinationType));
}
public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
{
if (value is string)
{
try
{
string str = (string)value;
int i = str.LastIndexOf(",");
if (i != -1)
{
ControlText ct = new ControlText();
ct.IsUseDefaultText = bool.Parse(str.Substring(i + 1).Trim());
ct.Text = str.Substring(0, i);
return(ct);
}
}
catch
{
throw new ArgumentException("无法将\"" + (string)value + "\"转换为ControlText类型");
}
}
return(base.ConvertFrom(context, culture, value));
}
