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Xojo listbox
Xojo listbox








xojo listbox

The correct value to pass depends on the number of digits to the right of the decimal place in the column or cell.Ĭreating a simple hierarchical ListBox is more involved than a two-column ListBox because you must manage hiding and displaying the sublist data. You must pass a negative number to CellAlignmentOffsetAt or ColumnAlignmentOffsetAt to make room for the numbers to the right of the decimal place. When you use decimal alignment in a cell or column, you must take into account the fact that the decimal separator is aligned with the right edge of the column or cell. You can use this property to set or get the text of the Listbox cell, set the selection, or change other properties of the ListBox's TextField. When a cell is editable, the ActiveTextControl property is the TextField that contains the contents of that cell. The parameters row, and column are passed to the function.

XOJO LISTBOX CODE

The following code in the CellClick event makes the cell the user pressed on editable. When the user presses Tab or Return or clicks in another cell, the cell loses the focus and the contents of the cell are saved. This gives the focus to the editable cell and selects the current text of the cell, if any. Then call the EditCellAt method for each cell. Use the CellTypeAt or ColumnTypeAt properties to change a cell or column to "inline editable" when you want the user to be able to edit the contents of the ListBox. MessageBox( "You double-clicked in cell " + Str(row) + ", " + Str(column)) Use the LastAddedRowIndex property to get the index of the row you just added with AddRow.įor example, the following code populates a two-column ListBox with the names of the controls in the window and their indexes. Then use the CellValueAt method to add values to the other columns in the row.

xojo listbox

To populate a multi-column ListBox, first use the AddRow method to create the new row and populate the first column. Specific cells in a multi-column ListBox can be accessed using the CellValueAt method. If the total of the widths passed is greater than the width of the ListBox, then the remaining columns will be truncated.

xojo listbox

If too many widths are passed, the additional values are ignored. If you don't pass widths for all the columns, the remaining columns will be evenly spaced over the remaining space. The widths can be passed in points or as percentages of the total width of the ListBox. The widths of columns in multi-column ListBoxes can be set by passing the widths as a list of values separated by commas to the ColumnWidths property. You can use the InitialValue property to set up the inital values of multi-column ListBoxes by separating the column values with tabs and row values with carriage returns. If you want to put data in an invisible column, set the column width to zero. You should set ColumnCount to the number of columns that you want to display. The maximum number of columns is 256 (columns 0 through 255). This means that the ColumnCount property will always be one more than the number of the last column. The first column in a multi-column ListBox is column 0 (zero). You can create multi-column ListBoxes by changing the ColumnCount property. In this example, the Tag of each row is examined and if it's found to be "Taxable", the ComputeTaxes method is called and passed the value of the row.įor Each row As ListboxRow In Listbox1. The Rows method returns a ListBoxRow which allows you to easily iterate through rows. This means that the first row of the List property of a ListBox is row number 0 (zero). Items in single-column ListBoxes can be accessed using the List property. The following class constants of the DragItem class can be used with HeaderAt to specify that a method should apply to all columns or rows rather than a specific column or row. With some programming, you can create hierarchical lists that use disclosure triangles to show nested items. You can control font style on a cell-by-cell basis and set the column alignment. You can add a checkbox and/or a picture to a row and make a cell or column editable. The scrollable ListBox control is used to display one or more columns of information.










Xojo listbox