public bool AddGxFileLayer(IBasicMap pBasicMap, IGroupLayer pParentLayer, string sFileName)
{
try
{
if (sFileName == null)
{
sFileName = "";
}
if (pBasicMap == null)
{
return(false);
}
if (string.IsNullOrEmpty(sFileName))
{
OpenFileDialog dialog = new OpenFileDialog {
Filter = "图层文件 (*.lyr)|*.lyr",
Multiselect = false,
Title = "选择输入的图层文件"
};
if (dialog.ShowDialog() != DialogResult.OK)
{
return(false);
}
sFileName = dialog.FileName;
dialog = null;
}
if (string.IsNullOrEmpty(sFileName))
{
return(false);
}
if (!File.Exists(sFileName))
{
Interaction.MsgBox("地图图层加载失败，图层文件 " + sFileName + " 不存在。", MsgBoxStyle.Exclamation, "错误警告");
return(false);
}
IMapDocument document = null;
document = new MapDocumentClass();
if (!document.get_IsMapDocument(sFileName))
{
Interaction.MsgBox("文件 " + sFileName + " 无法加载。\r\n文件不是 MapDocument 文件。", MsgBoxStyle.Exclamation, "失败");
return(false);
}
if (document.get_IsRestricted(sFileName))
{
Interaction.MsgBox("文件 " + sFileName + " 无法加载。\r\n文件受到限制，无权使用。", MsgBoxStyle.Exclamation, "失败");
return(false);
}
document.Open(sFileName, null);
ILayer pLayer = null;
if (document.DocumentType == esriMapDocumentType.esriMapDocumentTypeLyr)
{
pLayer = document.get_Layer(0, 0);
if (pLayer == null)
{
Interaction.MsgBox("文件 " + sFileName + " 无法加载。\r\n图层文件或数据错误。", MsgBoxStyle.Exclamation, "加载失败");
}
}
else
{
Interaction.MsgBox("文件 " + sFileName + " 无法加载。\r\n文件不是地图图层文件。", MsgBoxStyle.Exclamation, "加载失败");
}
document.Close();
document = null;
if (pLayer == null)
{
return(false);
}
if (pParentLayer == null)
{
pBasicMap.AddLayer(pLayer);
}
else
{
pParentLayer.Add(pLayer);
}
IMapLayers layers = pBasicMap as IMapLayers;
if (pParentLayer == null)
{
layers.MoveLayer(pLayer, 0);
}
else if (pBasicMap is IMap)
{
layers.MoveLayerEx(pParentLayer, pParentLayer, pLayer, 0);
}
return(true);
}
catch (Exception exception)
{
this.mErrOpt.ErrorOperate(this.mSubSysName, "FunFactory.LayerFun", "AddGxFileLayer", exception.GetHashCode().ToString(), exception.Source, exception.Message, "", "", "");
return(false);
}
}
