C# Get SelectedIndex in ComboBox by name

Question

I have to process some controls by their names

this.Controls.Find(String.Format("lbl{0}", index),
            true)[0].Text = data[i].ToString();

but when I tryed to get a Combobox by name it can't show the SelectedIndex property

this.Controls.Find(String.Format("cmbDat{0}", index), true)[0].

Who i can do?

What has to do the Find method with the SelectedIndex property of a combobox? You don't use any SelectedIndex property in the code above — Steve, Oct 31 '13 at 17:50
-.- I can't use a SelectedIndex property in the code above because intellisense don't show this option in my project — user2921326, Oct 31 '13 at 18:01

score 3 · Accepted Answer · answered Oct 31 '13 at 17:50

You need to cast it to a ComboBox, because Find() returns a Control, which does not contain the SelectedIndex property.

Try this instead:

ComboBox theComboBox = this.Controls.Find(String.Format("cmbDat{0}", index), true) as ComboBox;

// Verify the combo box was found before trying to use it
if(theComboBox != null)
{
    // Do whatever you want with the combo box here
    theComboBox.SelectedIndex = ???
    theComboBox.Text = ???
}

score 0 · Answer 2 · edited Oct 12 '22 at 13:55

0

This way looks easier https://stackoverflow.com/a/1639106/12537158, all you need is this line:

Control ctn = this.Controls[name];

edited Oct 12 '22 at 13:55

Navigatron

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answered Oct 07 '22 at 09:58

latifa

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C# Get SelectedIndex in ComboBox by name

2 Answers2