Select To Enter Value
ដាក់តម្លៃទៅវាលដែលបានជ្រើស សម្រាប់លក្ខណៈដែលអ្នករើសលើផែនទី ជាមួយការមើលការជ្រើសជាមុន និងអាចប្រើកន្សោមជំនួសតម្លៃវាយផ្ទាល់។
- រកឃើញនៅឯណា
- KGA Toolbox ▸ Data Management ▸ Attribute ▸ Select To Enter Value
ទិដ្ឋភាពទូទៅ
This is the tool for attributing features as you identify them visually — clicking the parcels that belong to one owner, or the points that failed inspection, and stamping the value on all of them at once.
ការប្រើប្រាស់
- The workflow is selection-driven. Select To Input Value picks the features on the map; Selected Feature Preview shows what is currently selected, so you can confirm before writing.
- Value takes the value to write. Use Expression switches to expression entry instead, with Expression... opening the builder and Active expression: showing what is in force.
- For a boolean field, True and False buttons set the value directly.
- Set Null Value writes null. This is how a field is deliberately cleared — leaving Value blank is not equivalent, since an empty text value is not null.
- Overwrite existing value governs what happens where the field already holds data:
- Checked — existing values are replaced.
- Unchecked — populated fields are left alone, so only empty ones are filled. Use this to fill gaps without disturbing already-verified data.
- Check Selected Feature Preview before clicking Apply Value. A stray click on the map adds a feature to the selection, and the preview is where that becomes visible.
- For writing a value to a whole layer rather than a picked set, use Add value to fields. For filling nulls from a computed strategy, use Default Value Filler.
ប៉ារ៉ាម៉ែត្រ
| ផ្ទាំងគ្រប់គ្រង | ការពិពណ៌នា |
|---|---|
| Layer | The layer to edit. |
| Field | The field that receives the value. |
| Value | The value to write. |
| Overwrite existing value | Replaces values already present. Unchecked, only empty fields are filled. |
| Set Null Value | Writes null, clearing the field. |
| Use Expression | Derives the value from an expression rather than a typed value. |
| Expression... | Opens the expression builder. |
| Active expression: | Shows the expression currently in force. |
| True / False | Sets a boolean value directly. |
| Select To Input Value | Activates map selection for picking the features. |
| Selected Feature Preview | Lists the features currently selected. Check this before applying. |
| Apply Value | Writes the value to the selected features. |
របៀបប្រើ
- On the KGA Toolbox tab, in the Data Management group, open the Attribute menu and click Select To Enter Value.
- Set Layer and Field.
- Type the value in Value, or check Use Expression and click Expression... to build one.
- To protect existing data, leave Overwrite existing value unchecked.
- Click Select To Input Value and click the features on the map.
- Check Selected Feature Preview and confirm it lists exactly the features you intended.
- Click Apply Value.
- Repeat for the next value, picking a different set of features.
ព័ត៌មានអាជ្ញាបណ្ណ
Requires an active KGA Toolbox license. The tool validates the license before running.