如何使用foreach将MaskedTextBox'ValidatingType设置为typeof（DateTime）

问题描述

嗨



i想要使用foreach将MaskedTextBox'ValidatingType设置为typeof（DateTime）

hi

i want use foreach to set MaskedTextBox'ValidatingType to typeof(DateTime)

foreach(Control item in this.Controls)
        {
            foreach (Control co in item.Controls)
            {
                if(co is MaskedTextBox)
                {
                    MaskedTextBox mtb = (MaskedTextBox)co;
                    mtb.ValidatingType = typeof(DateTime);
                }
            }
            if (item is MaskedTextBox)
            {
                MaskedTextBox mtb1 = (MaskedTextBox)item;
                mtb1.ValidatingType = typeof(DateTime);
            }
        }

推荐答案

private readonly Type dateTimeType = typeof(DateTime);

private List<MaskedTextbox> allMaskedTextBoxes = new List<MaskedTextbox>(); 

private void SetMaskTBValType(Control.ControlCollection cCollection)
{
    foreach (Control c in cCollection)
    {
        if (c is MaskedTextBox)
        {
            var toMaskType = c as MaskedTextBox;

            toMaskType.ValidatingType = dateTimeType;

            // implement the other things you will need here !
        }
        else
        {
            if (c.HasChildren)
            {
                SetMaskTBValType(c.Controls);
            }
        }
    }
}

// and here's how you would call it to set the 
// ValidationType for every MaskedTextBox on the Form
private void YourForm_Load(object sender, EventArgs e)
{
    SetMaskTBValType(this.Controls);

    // verify
    bool test = maskedTextBox1.ValidatingType == dateTimeType;
}

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