I've this situation:

In grid I have TextBox and on changing text in the TextBox I uncheck checkbox in the grid with javascript.

When the checkbox is enabled, everything is working correctly:
Value in the code behind for `CheckBox1.Checked = false`, but when the checkbox is disabled value in the code behind for `CheckBox1.Checked = true` (Checkbox is render as unchecked by the browser).

Someone ideas ?

I unchecked the checbox with line of code like this:

```
document.getElementById("Checkbox1").checked = false;

```

This is happen on checkbox.OnChange