{"id":32,"date":"2010-06-17T20:20:00","date_gmt":"2010-06-18T01:20:00","guid":{"rendered":"http:\/\/anvil-of-time.com\/2010\/06\/17\/powerbuilder-change-background-of-modified-columns-in-datawindow\/"},"modified":"2021-03-08T19:34:54","modified_gmt":"2021-03-09T00:34:54","slug":"powerbuilder-change-background-of-modified-columns-in-datawindow","status":"publish","type":"post","link":"https:\/\/anvil-of-time.com\/powerbuilder\/powerbuilder-change-background-of-modified-columns-in-datawindow\/","title":{"rendered":"PowerBuilder – Change Background of Modified Columns in Datawindow"},"content":{"rendered":"

Okay so you have a datawindow with a bunch of rows which can be edited (a grid datawindow is a good choice).\u00a0 So when the user pulls up the data set and proceeds to change values in a variety of columns and a variety of rows you want to indicate to him that the specific row\/column has been changed by altering the background color.<\/p>\n

I have a solution of sorts which, once you get it going, will work.\u00a0 It involves:
\n1) adding a column on the datawindow object
\n2) populating that column in the itemchanged event
\n3) putting an expression on the background color property of each visible column in the datawindow object you want the color to change when edited<\/p>\n

1) I added a string column called ‘change’ (not a computed col) to my datawindow object.<\/p>\n

2) in the Itemchanged event on the Datawindow<\/p>\n

   \/\/ build a list of the column numbers which have been edited.\u00a0\n   \/\/ You can enhance this to account for errors, etc.\n   string ls_desc, ls_value, ls_d, ls_prev\n  \u00a0integer li_rc\n   ls_desc =\u00a0 dwo.name + '.ID'\n  \u00a0ls_d = describe(ls_desc)\n  \u00a0ls_prev = getitemstring(row,'change')\n   IF IsNull(ls_prev) THEN ls_prev = ''\n   ls_value = ls_prev + '[' + ls_d + ']' \/\/ append new value\n  \u00a0li_rc =\u00a0\u00a0\u00a0 this.setitem( row, 'change', ls_value)\n<\/pre>\n
3) in the background color of a column called ‘box3’ put the following expression<\/p>\n
IF (pos(change[0], '[' + describe('box3.ID') + ']') > 0, RGB(255,255,0),RGB(255,255,255))<\/pre>\n
As an alternative, you can make step three dynamic in an open\/postopen type event:<\/p>\n
dw_1.retrieve( )\ndw_1.setredraw( False)\n\/\/ get list of columns in the order they are displayed which may not be the same as their column number order\nll_max = Integer(dw_1.Object.DataWindow.Column.Count)  \/\/ determine number of columns\nFOR ll_i = 1 TO ll_max STEP 1\n   \/\/ only need the visible columns\n   IF dw_1.describe("#" + String(ll_i) + ".Visible") = '1' THEN\n     \/\/ first set the mode to opaque\n     ls_modstring = dw_1.describe( "#" + string(ll_i) +  ".Name") +  ".Background.Mode='0'"\n     ls_msg = dw_1.Modify(ls_modstring)\n     \/\/ set the color of the cells\n     ls_modstring = dw_1.describe( "#" + string(ll_i) +  ".Name") +  ".Background.Color =  ~"536870912~t IF (pos(change[0],~'[~' + describe(~'" + &\n       \u00a0dw_1.describe( "#" + string(ll_i) +  ".Name") + ".ID~') + ~']~') > 0, RGB(255,255,0),RGB(255,0,255))~""\n\n     ls_msg = dw_1.Modify(ls_modstring)\n   END IF\n\nNEXT\n\ndw_1.setRedraw(true)\n<\/pre>\n

\nSample view:<\/p>\n
\"\"<\/a><\/p>\n
\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Okay so you have a datawindow with a bunch of rows which can be edited (a grid datawindow is a good choice).\u00a0 So when the user pulls up the data set and proceeds to change values in a variety of columns and a variety of rows you want to indicate to him that the specific…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,10],"tags":[21,12,16],"_links":{"self":[{"href":"https:\/\/anvil-of-time.com\/wp-json\/wp\/v2\/posts\/32"}],"collection":[{"href":"https:\/\/anvil-of-time.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/anvil-of-time.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/anvil-of-time.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/anvil-of-time.com\/wp-json\/wp\/v2\/comments?post=32"}],"version-history":[{"count":13,"href":"https:\/\/anvil-of-time.com\/wp-json\/wp\/v2\/posts\/32\/revisions"}],"predecessor-version":[{"id":1738,"href":"https:\/\/anvil-of-time.com\/wp-json\/wp\/v2\/posts\/32\/revisions\/1738"}],"wp:attachment":[{"href":"https:\/\/anvil-of-time.com\/wp-json\/wp\/v2\/media?parent=32"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/anvil-of-time.com\/wp-json\/wp\/v2\/categories?post=32"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/anvil-of-time.com\/wp-json\/wp\/v2\/tags?post=32"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}