/// <summary>
/// 根据符号样式类别初始化SymbologyControl，如果图层已有符号，则把符号作为SymbologyControl的第一个符号并选中
/// </summary>
/// <param name="eSymbologyStyleClass">符号样式类别枚举（点/线/面/标注/文本/指北针/比例尺等样式类别）</param>
private void SetFeatureClassStyle(esriSymbologyStyleClass eSymbologyStyleClass)
{
SymbologyControl.StyleClass = eSymbologyStyleClass;//获取指定类别的符号样式库，即当前是点/线/面/标注/文本/指北针/比例尺等符号库的哪一个符号库
var symbologyStyleClass = SymbologyControl.GetStyleClass(eSymbologyStyleClass);
if (LegendClass != null)
{
StyleGalleryItem = new ServerStyleGalleryItem {
Name = "当前符号", Item = LegendClass.Symbol
};
symbologyStyleClass.AddItem(StyleGalleryItem, 0);
}
symbologyStyleClass.SelectItem(0);
}
