DisposableFeatureCursor Class

Wrapper class of a disposable IFeatureCursor which will automatically release the IFeatureCursor after the cursor is used.

Usage:

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    IFeatureCursor featureCursor = featureClass.Search(null, false);
    using (DisposableFeatureCursor dispCursor = new DisposableFeatureCursor(featureCursor))
    {
        IEnumerable<IFeature> features = dispCursor.AsEnumerable();
        foreach (IFeature f in features)
        {
            // perform your operation
        }
    }
    //Get a new instance of the cursor featureCursor2. You can't reuse the existing featureCursor.
    IFeatureCursor featureCursor2 = featureClass.Search(null, false);
    using (DisposableFeatureCursor dispCursor2 = featureCursor2.ToDisposable())
    {
        IEnumerable<IFeature> features = dispCursor2.AsEnumerable();
        int cnt = features.Count();
    }

Constructors

DisposableFeatureCursor(IFeatureCursor) Constructor

Creates a DisposableFeatureCursor from IFeatureCursor object. Note that a DisposableFeatureCursor cannot be wrapped or instantiated in another DisposableFeatureCursor instance, otherwise, an ArgumentException "Unable to wrap DisposableFeatureCursor in another DisposableFeatureCursor instance." will be thfeaturen by the constructor.

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public DisposableFeatureCursor(IFeatureCursor cursor)

Property

Methods

DisposableFeatureCursor.Dispose Method

Release the cursor to avoid leaking database resources.

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public void Dispose()

DisposableFeatureCursor.DeleteFeature Method

Delete the existing Feature in the database corresponding to the current position of the cursor. See IFeatureCursor.DeleteFeature.

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public void DeleteFeature()

DisposableFeatureCursor.FindField(String) Method

Find the index of the field with the specified name. See IFeatureCursor.FindField.

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public int FindField(string name)

DisposableFeatureCursor.Flush Method

Flush any outstanding buffered writes to the database. See IFeatureCursor.Flush.

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public void Flush()

DisposableFeatureCursor.InsertFeature(IFeatureBuffer) Method

Insert a new Feature into the database using the property values in the input buffer. The object ID of the new Feature, if there is one, is returned. See IFeatureCursor.InsertFeature.

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public object InsertFeature(IFeatureBuffer buffer)

DisposableFeatureCursor.NextFeature Method

Advance the position of the cursor by one and return the Feature object at that position. See IFeatureCursor.NextFeature.

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public IFeature NextFeature()

DisposableFeatureCursor.UpdateFeature(IFeature) Method

Update the existing Feature in the database corresponding to the current position of the cursor. See IFeatureCursor.UpdateFeature.

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public void UpdateFeature(IFeature feature)