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TransCAD

TransCAD. Displaying and Editing Data. Displaying and Editing Data.

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TransCAD

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  1. TransCAD Displaying and Editing Data

  2. Displaying and Editing Data • You can use the Info tool to display the data that go with a map feature, or you can display the data in tabular form, using dataviews. Dataviews let you arrange the columns and rows of information any way you like and customize the appearance of the data. • You can also create formula fields to display calculated values, and compute statistics for records shown in a dataview.

  3. See Information on a Single Map Feature

  4. See Information on Several Map Features Hold down Shift key to add more and hold down Ctrl to remove data. Click the right mouse button for Print.

  5. Displaying Data in a Dataview • Each row is called a record, each column is called a field. • If the name of a field contains spaces or other special characters, TransCAD puts square brackets around it in the dataview. • Some fields in a dataview may include additional information, such as data source information. If there is additional information about a field in a dataview, positioning the cursor over the field heading displays a pop-up window that displays the information.

  6. Display Data or

  7. Finding Records, a column Search the exactly matched value or the closest value Keep it blank

  8. Change the Dataview Title, Font, and Settings

  9. Change Column Headings and Display Format

  10. Arranging Columns in a Dataview • After selecting a column, you can do any of the following: • Move a column to a different position • Hide the column • Change the width of a column by dragging • Change the width of one or more columns • Lock a column in place • Unlock locked columns • Rearrange the columns in a dataview • Show all columns in a dataview

  11. Move a Column to a Different Position Use the left and right arrow keys to move the column

  12. Hide One or More Columns

  13. Change the Width of Columns Change the width by dragging

  14. Lock One or More Columns Click to unlock

  15. Rearrange the Columns in a Dataview

  16. Sort Records Based on a Single column or Several Fields

  17. Display Records in Their Original Order Select none while using this instruction

  18. Print, Saving, and Opening

  19. Editing and Updating Data • When you change a value in a dataview, the change is stored immediately in the geographic file or database. You do not need to save the dataview to save changes to your data. • Remember: Changing a value in a dataview actually changes the source file. Saving a dataview only the way the data are arranged and presented, not the values contained in particular columns and rows.

  20. Editing Data in a Dataview • Clink or Double-click on the cell containing the data you want to edit then make change.

  21. Fill a Range of Cells or a Column with Data

  22. Aggregate • You can fill in records with the aggregate data from another layer. For example, you could fill in fields for a city boundary layer with the number of bus stops or the total street mileage within each city. • You can use this only if the dataview contains data for a map layer. To use this method, you must choose to fill a single column in the dataview.

  23. Adding and Deleting Records

  24. Create a Formula Field

  25. Delete a Formula Field

  26. Fill a Column with the Result of a Formula

  27. Using Formula Fields to Label a Map String addition

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