有关Winform

Question

我设置了一个textBox和一个ComboBox,填写ComboBox1为：全部时， TextBox1 为不可用状态。如何实现？ 

Answer 1

在ComboBox1的textchange事件里面判断ComboBox1为：全部时TextBox1.enable=true;

Answer 2

在combox的selectindexchange事件里面判断，然后设置textbox的enabled属性

Answer 3

if(ComoBox1.Text=="全部")
      textBox.Enabled=true;
试一下！

Answer 4

        private void comboBox1_Leave(object sender, EventArgs e)
        {
            if (comboBox1.Text == "")
            {
                textBox1.ReadOnly = true;
            }
            else
            {
                textBox1.ReadOnly = false;
            }
        }

Answer 5

        private void comboBox1_Leave(object sender, EventArgs e)
        {
            if (comboBox1.Text == "全部")
            {
                textBox1.ReadOnly = true;
            }
            else
            {
                textBox1.ReadOnly = false;
            }
        }

Answer 6

 private void comboBox1_SelectedValueChanged(object sender, EventArgs e)
        {
            if (this.comboBox1.Text.Equals("全部"))
            { 
                this.TextBox.Enabled= false;
            }
        }