PRB: Unable to Edit Blank Text Boxes in a Grid (134855)


The information in this article applies to:

  • Microsoft Visual FoxPro for Windows 3.0
This article was previously published under Q134855

SYMPTOMS

In a grid, when you try to edit a column that doesn't have a control source, the computer beeps and the text is not entered. You might expect that the grid would accept data.

CAUSE

This is the correct behavior for columns that don't have a ControlSource set. If you set the ControlSource, the column is editable. As the code below demonstrates, a table defined with only two fields as a control source for the grid disallows the additional column a place to store the new information being entered when the button's click procedure is run.

WORKAROUND

Create a custom grid class with an Init procedure to alter the table or ControlSource to allow the user to create and store new data by passing the optional "init1,init2" parameter used with the addobject() function.

STATUS

This behavior is by design.

MORE INFORMATION

Steps to Reproduce Behavior

Run the following code: 
CREATE TABLE table1 ;
     (col1 C(15), col2 c(15))
append blank
replace col1 with 'Row(1)  Col(1)'
replace col2 with 'Row(1)  Col(2)'
append blank
replace col1 with 'Row(2)  Col(1)'
replace col2 with 'Row(2)  Col(2)'
append blank
replace col1 with 'Row(3)  Col(1)'
replace col2 with 'Row(3)  Col(2)'
append blank
replace col1 with 'Row(4)  Col(1)'
replace col2 with 'Row(4)  Col(2)'
append blank
replace col1 with 'Row(5)  Col(1)'
replace col2 with 'Row(5)  Col(2)'
skip - 5

use table1

public x
x = create("f1")
x.show

define class f1 as form
add object grid1 as grid with ;
forecolor = rgb(255,0,0);

add object b1 as commandbutton with ;
fontsize = 8, ;
caption = 'AddColumn', ;
top = 200

add object l1 as label with ;
caption = 'Clicking this button should add a Column.', ;
fontsize = 8, ;
autosize = .T., ;
top  = 220
proc b1.click
     x.grid1.addcolumn
     x.grid1.column3.addobject('text','textbox')
     x.grid1.column3.currentcontrol = 'text1'
     x.grid1.column3.text1.visible = .t.
     x.refresh
endproc
enddefine

* Click the AddColumn button.
* Click in one of the blank cells and begin typing.
Modification Type:MajorLast Reviewed:2/15/2000
Keywords:KB134855
©2002 Microsoft Corporation. All rights reserved.