All,
Odd problem here and I have not found a solution to it. I'm using ArcGIS 10.1, VB .net and the source data is a shapefile.At some point in my tool I add a field using the IFeatureClass.AddField method and populate it with values but when I add this field it drops the spatial index on the dataset. In ArcMap if I open the Attribute table I see the * in the Shape field which suggests its still there but I know its not. Later on in my tool I test if a dataset has a spatial index, if not I add one. I test if the dataset has a spatial index with the following code:
This always fails suggesting the spatial index exists but I know it does not as another tool runs very slowly without it.Only when I restart ArcMap, load the shapefile, open attribute table do I see that the * in the shape field has disappeared.So my question is knowing that I use the IFeatureClass.AddField method to add a field how do I "refresh" ArcMap to pick up on the fact that the spatial index has been lost and allow my check for spatial index code to work?
Duncan
Odd problem here and I have not found a solution to it. I'm using ArcGIS 10.1, VB .net and the source data is a shapefile.At some point in my tool I add a field using the IFeatureClass.AddField method and populate it with values but when I add this field it drops the spatial index on the dataset. In ArcMap if I open the Attribute table I see the * in the Shape field which suggests its still there but I know its not. Later on in my tool I test if a dataset has a spatial index, if not I add one. I test if the dataset has a spatial index with the following code:
Code:
Dim pFeatureClass As IFeatureClass
pFeatureClass = m_pFeatureLayer_River.FeatureClass
Dim pIndexes As IIndexes
Dim pEnumIndex As IEnumIndex
pIndexes = pFeatureClass.Indexes
pEnumIndex = pIndexes.FindIndexesByFieldName(pFeatureClass.ShapeFieldName)
Dim pIndex As IIndex
pIndex = pEnumIndex.Next
If pIndex Is Nothing Then
' Add Spatial Index
End IfDuncan