如何从隐藏表单获取文本框数据到当前表单

本文关键字：表单 数据 获取 隐藏 取文本 | 更新日期: 2023-09-27 18:07:52

在我的应用程序中，我有多个表单form1到form6，我通过隐藏和显示方法在表单之间切换，在表单3中，我有多个文本框和复选框，我需要获得这些文本框数据和复选框状态在form6文本框上的按钮单击事件…

public partial class Form6 : Form
{
     Form3 _form3;
     Form4 _form4;
    public Form6()
    {
        InitializeComponent();
    }
    private void L_Click(object sender, EventArgs e)
    {
            _form3 = new Form3();
            string str1 = _form3.textBox1.Text;
            textBox21.Text = (str1 + Environment.NewLine).ToString();
            string str2 = _form3.textBox11.Text;
            textBox21.Text = (str2 + Environment.NewLine).ToString();
            int result1 = _form3.checkBox1.CheckState == CheckState.Checked ? 1 : 0;
            int result2 = _form3.checkBox11.CheckState == CheckState.Checked ? 1 : 0;
            int result3 = _form3.checkBox21.CheckState == CheckState.Checked ? 1 : 0;
            int result4 = _form3.checkBox31.CheckState == CheckState.Checked ? 1 : 0;
            int result5 = _form3.checkBox41.CheckState == CheckState.Checked ? 1 : 0;
            int result6 = _form3.checkBox51.CheckState == CheckState.Checked ? 1 : 0;
            int result7 = _form3.checkBox61.CheckState == CheckState.Checked ? 1 : 0;
            int result8 = _form3.checkBox71.CheckState == CheckState.Checked ? 1 : 0;
            int result9 = _form3.checkBox81.CheckState == CheckState.Checked ? 1 : 0;
            int result10 = _form3.checkBox91.CheckState == CheckState.Checked ? 1 : 0;
            textBox21.Text = (result1).ToString();
            textBox21.Text = (result2).ToString();
            textBox21.Text = (result3).ToString();
            textBox21.Text = (result4).ToString();
            textBox21.Text = (result5).ToString();
            textBox21.Text = (result6).ToString();
            textBox21.Text = (result7).ToString();
            textBox21.Text = (result8).ToString();
            textBox21.Text = (result9).ToString();
            textBox21.Text = (result10).ToString();
}

如何从隐藏表单获取文本框数据到当前表单

您的问题是您没有引用Form3的当前实例，而不是创建一个新的，尝试:

    Form3 form3;
    public Form6(Form3 form3)
    {
        InitializeComponent();
        this.form3=form3;
    }

 private void L_Click(object sender, EventArgs e)
    {
       int result1 = form3.checkBox1.CheckState == CheckState.Checked ? 1 : 0;
       int result2 = form3.checkBox11.CheckState == CheckState.Checked ? 1 : 0;
       //...
       //...   
    }
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