Question

I have a drop down list that needs to show content that has been put into a datatable using the SqlHelper.FillDataTable. I use a for each statement to put each value into a list item and then add that item to the drop down list values. I would like to add this item to the drop down list only if the first letter of the name(these are names from a database) is between A and K. The current if statement I wrote results in no values being put into the drop down list. Here is the current code:

ListItem NewItem = new ListItem();
NewItem.Text = dr_UsersToShow["ViewValue"].ToString();
NewItem.Value = dr_UsersToShow["DataValue"].ToString();
string str = Convert.ToString(NewItem.Text[0]);
if (String.Compare("str", "A", true) >= 0 && String.Compare("str", "K", true) <= 0)
{
    this.dlNewUserList.Items.Add(NewItem);
}

Answer 1

You are comparing the literal “str” to “A” and “K”. You want to compare the string str to “A” and “K”. Simply remove the quotes from “str”.

Change this

if (String.Compare("str", "A", true) >= 0 && String.Compare("str", "K", true) <= 0)

to this

if (String.Compare(str, "A", true) >= 0 && String.Compare(str, "K", true) <= 0)