C# Can't get combobox Selected Item string

Question

I have i problem with a combobox value. The name string variable return nothing, but when I check (name != ""), return true.

    private void ReftreshComboBox()
            {
                comboBoxAlbums.Items.Clear();
                foreach (KeyValuePair<string, string> kvp in mysql.GetAlbums())
                {
                    comboBoxAlbums.Items.Add(kvp.Value.ToString());
                }
            }
    this.name = comboBoxAlbums.SelectedItem.ToString();

Maybe it's something you cannot see? A space, tab or other kind of whitespace? — nvoigt, Feb 20 '14 at 20:19
Are you sure you are not getting a Null Reference Exception, because it seems you don't have any selected items. — Habib, Feb 20 '14 at 20:19
i think that last line is at a different location in his code — Jonesopolis, Feb 20 '14 at 20:21
No, I select item from ComboBox, and check it by MessageBox. Return empty box — gevleeog, Feb 20 '14 at 20:22

score 0 · Answer 1 · answered Feb 20 '14 at 20:24

0

Use String.IsNullOrEmpty(this.name) and I bet you will find your answer. string is a reference type. Its nullable.

That is: null != ""

answered Feb 20 '14 at 20:24

Serialize

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score 0 · Accepted Answer · answered Feb 20 '14 at 20:35

0

this.name = comboBoxAlbums.GetItemText(comboBoxAlbums.SelectedItem);

answered Feb 20 '14 at 20:35

u84six

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Then like h4xpace said, either nothing is selected or the field list item is empty. – u84six Feb 20 '14 at 22:06
but I have selected a item from combobox, then checked it by Messagebox but te box was empty... I have tried all of methods. Result = nothing. – gevleeog Feb 21 '14 at 02:07
Ok, this method work. The problem was with name... stupid situation. All works, thanks. – gevleeog Feb 21 '14 at 10:28

C# Can't get combobox Selected Item string

2 Answers2