Populating a drop down list with non-repeating values - sql

Question

I have a multiple search query which includes a drop down to pick an admin which needs to be called from the Assigned_To column in my RMS db. The problem is that the dropdown shows every single value repeated. For example:
Admin:
Not assigned
Not assigned
"
"
"
Alexandra M.
Martin D.
Alexandra M.
I want it to look like:
Admin:
Not assigned
Martin D.
Alexandra M.
"Not assigned" is the default value of a case that is created.
Here is my code:
var db = Database.Open("RMS") ;
var selectCommand = "SELECT * FROM RMS";
var formSSO = "";
var formAssigned_To = "";
var formCase_Status= "";
var fromDate = "";
var toDate = "";
formSSO = Request.QueryString["formSSO"];
formAssigned_To = "%" + Request["formAssigned_To"] + "%";
formCase_Status = Request["formCase_Status"];
fromDate = Request.QueryString["fromDate"];
toDate = Request.QueryString["toDate"];
selectCommand = "SELECT DISTINCT * FROM RMS WHERE 1=1";
if(!Request.QueryString["formSSO"].IsEmpty() ) {
selectCommand +=" AND SSO LIKE #0";
}
if(!Request.QueryString["formAssigned_To"].IsEmpty() ) {
selectCommand +=" AND Assigned_To LIKE #1";
}
if(!Request.QueryString["formCase_Status"].IsEmpty() ) {
selectCommand +=" AND Case_Status = #2";
}
if(!Request.QueryString["fromDate"].IsEmpty() ) {
selectCommand +=" AND Created >= #3";
}
if(!Request.QueryString["toDate"].IsEmpty() ) {
selectCommand +=" AND Created <= #4";
}
var data = db.Query(selectCommand, formSSO, formAssigned_To, formCase_Status, fromDate, toDate);
var columns = new[]{"ID", "SSO", "Category", "System", "Subject", "Created", "Assigned_To"};
var grid = new WebGrid(data, ajaxUpdateContainerId: "grid", defaultSort: "ID", columnNames: columns);
if (Request.QueryString[grid.SortDirectionFieldName].IsEmpty()) {
grid.SortDirection = SortDirection.Descending;
}
}
And this is the html form field for the dropdown:
<li class="form-line form-line-column" id="id_22">
<label class="form-label-top" id="label_22" for="input_22"> ADMIN </label>
<div id="cid_22" class="form-input-wide">
<select name="formAssigned_To">
#foreach(var row in data){
<option></option>
<option value="#row.ID">#row.Assigned_To</option>
}
</select>
</div>
</li>

Answer 1

Can't you just use
SELECT DISTINCT Assigned_To FROM RMS WHERE 1=1
That would give you the distinct values for the dropdown, otherwise you would have to do it
from the returned results.

Answer 2

I figured it out! I changed my form field to this: (Which has its own SELECT DISTINCT because it was specific to this field.
<li class="form-line form-line-column" id="id_22">
<label class="form-label-top" id="label_22" for="input_22"> ADMIN </label>
<div id="cid_22" class="form-input-wide">
<select name="formAssigned_To">
<option></option>
#foreach(var row in db.Query("SELECT DISTINCT Assigned_To FROM RMS")){
<option value="#row.Assigned_To">#row.Assigned_To</option>
}
</select>
</div>
</li>
I left my selectCommand like this:
selectCommand = "SELECT * FROM RMS WHERE 1=1";
This was thanks to: CSHTML - SQL QUERY....WHERE NAME=#NameOne