public static IDataSource OpenDataSource()
{
using (frmDataSource frm = new frmDataSource())
{
frm.ucBudGISDataSource1.SelectableType = enumCatalogItemType.FeatureClass;
if (frm.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
ICatalogItem citem = frm.ucBudGISDataSource1.SelectedCatalogItem;
if (citem is CatalogFile)
{
return(GetDataSource(citem as CatalogFile));
}
else if (citem is CatalogFeatureClass)
{
return(GetDataSource(citem as CatalogFeatureClass));
}
else if (citem is CatalogNetFeatureClass)
{
return(GetDataSource(citem as CatalogNetFeatureClass));
}
else
{
throw new NotSupportedException("暂时不支持类型为\"" + citem.Tag.ToString() + "\"的数据源。");
}
}
}
return(null);
}
public override object GetValue(object sender)
{
using (frmDataSource frmds = new frmDataSource())
{
frmds.ucBudGISDataSource1.SelectableType = GetCatalogItemType();
if (frmds.ShowDialog() == DialogResult.OK)
{
return(frmds.ucBudGISDataSource1.SelectedCatalogItem);
}
}
return(base.GetValue(sender));
}