CODEWITHSUNDEEP
c#.netwinforms
Wamiq Siddiqui
Wamiq Siddiqui

Reputation: 11

How to reset combobox?

I have a combobox with dropdown style and 2 text boxes. I want to add a condition that if the string of either of the 2 text boxes are not null than the combobox should get reset if any item is selected from it.

I'm using combobox.SelectedIndex=-1 in my if clause but it does not work I guess because I'm using it in a wrong event.

Upvotes: 1

Views: 9182

Answers (3)

Orion77
Orion77

Reputation: 138

Same as clearselection in c# the command for WF is

combobox.ResetText()

Upvotes: 0

Saurabh
Saurabh

Reputation: 1631

Try This

combobox.Items.Clear();

or

combobox.DataSource = null;

I hope you managing you Text_Changed event well , cause you have not posted that code

Upvotes: 1

Bob G
Bob G

Reputation: 1246

Make sure that both your textboxes are using the TextChanged event, and then point them to the same method. If both boxes are not null, then the combobox will reset. If you want it to be one or the other, just changed the && to ||

    private void TextBox_TextChanged(object sender, EventArgs e)
    {
        if (!string.IsNullOrEmpty(textBox1.Text) && !string.IsNullOrEmpty(textBox2.Text))
        {
            comboBox1.SelectedIndex = -1;
        }
    }

Upvotes: 1

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