Dropdown list to bind temporary text

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I have a requirement, please help me.

We have employee entry form, in that we have course dropdown list it contains list of courses. Each employee should select course while saving employee information. We are inserting Selected course id in Employee table.

Now we got a change as all existing courses should be deactiveted and create new courses similarly in Edit employee form we should display deactivated (previously selected) course as temporarily but on dropdown list we should display present active course list to select newly introduced course.

Please help me. I am facing problem to display deactivated course as dropdownlist temporary default item.

Note : deactivated course should not display in dropdown list with active list items.

Regards,
Ramesh

Posted 29-Jul-15 0:27am

Ramesh0809

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Suvendu Shekhar Giri · Answer 1 · 2015-07-29T01:13:00

You can disable a specific list item of your dropdownlist as follows-

C#

foreach (ListItem item in drpCourses.Items)
{
  if (int.Parse(item.Value.ToString()) <11) //let's say last old id is 10
  {
     item.Attributes.Add("Style", "color:silver");
     item.Attributes.Add("Disabled", "true");
  }
}

You can customize it as per your requirement.