Handing Security Error 2148

Nice post detailing how to solve the problem: Resolve Security Error 2148

Percentage Width For Datagrid Columns

Specifying relative using percentage is a common need for UIs. Unfortunately I dont see a simple way to do this in Flex2.0. Penning down a workaround that works for me.
On creationComplete event of your DataGrid call a function that has a logic similar to this:

var idx:Number=0;
//myTable is the id for the dataGrid you want to manipulate
for each(var col:DataGridColumn in myTable.columns{
  switch(idx){
    case 0:
      col.width = summaryTable.width*0.23;
      break;
    case 1:
      col.width = summaryTable.width*0.13;
      break;
    case 2:
      col.width = summaryTable.width*0.10;
      break;
    case 3:
      col.width = summaryTable.width*0.11;
      break;
    case 4:
      col.width = summaryTable.width*0.11;
      break;
    case 5:
      col.width = summaryTable.width*0.11;
      break;
    case 6:
      col.width = summaryTable.width*0.17;
      break;
    case 7:
      col.width = summaryTable.width*0.04;
      break;
  }
  if(idx < summaryTable.columnCount){
    idx++;
  }
}

Yes, this is a bit ugly. Not only you need to know the exact number of columns, you need to also make sure that the sum of parts is 100. For slightly better maintainability at most you can use declared constants in the switch statement.

Datagrid Fix

Was grappling with some Datagrid issues only to discover later that it is a known bug. For a list of datagrid bugs and fix provided by adobe:
Datagrid Bugs Hotfix at Adobe

Getting A Screenshot/ Screengrab in Flex

While developing your RIA you may, like me, feel a need for taking a screen shot. This you may want to use in your reports or for a static page.

Solution

Flex Problems September 2007

Just archiving the flex problems I faced and the solutions that helped me. Will have one of these per month depending on whether I find a problem or not :p.

Problem: This message comes in debug mode: "Installed Flash Player is Not a Debugger. Flex Builder cannot locate the required debug version of the Flash Player. You may need to install the debug version of the Flash Player 9.0 or reinstall Flex Builder. Do you want to try to debug with the current version?"

Solution: Visit this link