In MapStudio, layers which added by uploading structured data or accessing SuperMap iServer REST data services support querying and editing feature attributes, while layers added by public structured data and data services in iPortal only support querying feature attributes.
Querying and editing feature attributes in the attribute table
Click on the right of the layer name, and select "Attribute table" in the drop-down menu, then you can query and edit feature attributes in the attribute table. Specifically, you can do the following in the attribute table.
- Search: Support keyword search and box-selected search
- Keyword search: In the search box in the upper-right corner of the attribute table, enter the keyword of the field you want to query.
- Box-selected search: Click "All features" next to the search box, select a box-selected way in the drop-down menu (including rectangular, circular, polygon). When the cursor becomes "+", drag the cursor to draw the search range, or you can press the Tab and enter the node position in the pop-up window to draw.
- Edit: Support editing attribute values. Click the edit icon in the upper right corner of the attribute table, then find the field in the attribute table that needs to edit, and save it after finished.
- Filter: The fields in the attribute table support filtering. Click the filter icon in the upper-right corner of the attribute table, and uncheck the fields that need to filter.
- Sorting: Columns of the attribute table support sorting by ascending or descending order.
- Linkage: Support the linkage of attribute and map. Click on a row in the attribute table, then the location and the attribute information of the feature will be displayed on the map.
- Show the number of features: In the top left of the attribute table, it will show the number of features added in the layer.