Multi Checkbox

Snowprog

Hello

I'm new to Fast Reports so my question may be dumb. I have the problem that I have to display three states as a checkbox: exam passed (check), exam failed (minus) and exam unknown (cross?). Is there some way to get this behaviour. As far as I can see the supplied checkbox is supporting only two states. I was looking at the image control - maybe I can use this one for my problem?

Thanks in advance
Uwe

AlexTZ

Hello,

CheckBoxObject supports two state only. You may emulate the third state by the following properties:
- Checked = true
- CheckedSymbol = Fill
It can be done in the CheckBoxObject.BeforePrint event handler.

You also may try to use PictureObject instead. The possible way to do this:
- put 3 picture objects (with checked, unchecked, unknown pictures), in the same location
- use BeforePrint event handler to hide/show pictures (via Visible property) to display the picture you need.

Snowprog

AlexTZ wrote: »

Hello,

CheckBoxObject supports two state only. You may emulate the third state by the following properties:
- Checked = true
- CheckedSymbol = Fill
It can be done in the CheckBoxObject.BeforePrint event handler.

You also may try to use PictureObject instead. The possible way to do this:
- put 3 picture objects (with checked, unchecked, unknown pictures), in the same location
- use BeforePrint event handler to hide/show pictures (via Visible property) to display the picture you need.

Thanks for the quick response. I will try out your suggestions.

Snowprog

I'm sorry to bother you again.

But I don't get the way how to work with the BeforePrint Event with the checkbox. I thought of something like: getting the current data (which is 0,1 or 2) and then set the properties according to it. But I can't find a way to read the current value of the field which is bound to the checkbox. Sorry again, as I think this is really a noob question.

AlexTZ

Do not bind the data to a checkbox. Use this code (BeforePrint event):

int value = (int)Report.GetColumnValue("YourTable.Column");
switch (value)
{
  case 0:
    CheckBox1.CheckedSymbol = CheckedSymbol.Check;
    CheckBox1.Checked = false;
    break;
  case 1:
    CheckBox1.CheckedSymbol = CheckedSymbol.Check;
    CheckBox1.Checked = true;
    break;
  case 2:
    CheckBox1.CheckedSymbol = CheckedSymbol.Fill;
    CheckBox1.Checked = true;
    break;
}