Member Avatar for zifina

i have a trackbar bound to a text box.how can i change value of the trackbar to its maximum value if text box value exceed the max limit for there any setting in properties of trackbar?
its very urgent..please help..thanks in advance.

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Dani AI

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There is no built-in TrackBar property that automatically clamps a typed TextBox value to the TrackBar maximum. As suggested, you must validate/normalize the TextBox value in code (or use a control that enforces the range). Assigning a value outside the TrackBar Minimum/Maximum will throw, so guard against that.

A common WinForms pattern is to validate on leave/validating, parse with int.TryParse, clamp to the TrackBar range, then update both controls. Example:

private void textBox1_Validating(object sender, CancelEventArgs e)
{
    if (!int.TryParse(textBox1.Text, out int v))
    {
        // invalid input: keep focus, show an error, or reset textBox1.Text
        e.Cancel = true;
        return;
    }

    v = Math.Max(trackBar1.Minimum, Math.Min(trackBar1.Maximum, v));
    trackBar1.Value = v;
    textBox1.Text = v.ToString();
}

If the controls are data-bound, handle the clamp in the data model property setter or via the binding's Parse/Format handlers so the source never receives an out-of-range value. In WPF use a Slider with a ValidationRule or a converter to enforce range on binding updates. If the goal is to prevent typing out-of-range values entirely, consider NumericUpDown (WinForms) which enforces Minimum/Maximum automatically.

See the TrackBar and NumericUpDown control documentation for control-specific behavior and events:
TrackBar control (Windows Forms)
NumericUpDown control (Windows Forms)

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Member Avatar for skatamatic 
if value > trackbar.maximum then trackbar.value = trackbar.maximum

It's pseudocode, but should do the trick.

Member Avatar for zifina

actually i need to know if there is any setting in slider properties..to achieve this :)

Member Avatar for skatamatic

No. But it is very easy to achieve by doing what I already told you to do.

Member Avatar for zifina

ya..thank you :)

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