修改mapx实体的数据集

技术资料：修改mapx实体的数据集(tab or db)的值[转载]

当修改了某实体的数据值后，如何将修改写入它的数据集（图层或数据库），使用实体的rowvalue属性，参看下面的代码。

Dim lyr As MapXLib.Layer
Dim ds As MapXLib.Dataset
Dim ftrs As MapXLib.Features
Dim f As MapXLib.Feature
Dim rvs As MapXLib.RowValues
Dim rv As MapXLib.RowValue

'Get the layer to create a dataset for
Set lyr = Map1.Layers.Item("US Capitals")

'Open the dataset
Set ds = Map1.Datasets.Add(miDataSetLayer, lyr)

'Get the feature to update
Set ftrs = lyr.Search("capital like ""albany""")
Set f = ftrs.Item(1)

'Get the row to update
Set rvs = ds.RowValues(f)

'Get the column to update
Set rv = rvs.Item("Capital")

'Change the value
rv.Value = "New Albany"

'Update the feature and dataset with the new value
f.Update True, rvs
ds.Refresh

谢谢

这两种方法都可以！

thank you!