Question

我想显示所有包含我在textbox5.text中输入的值的行。

当我输入一个月的例子是10进入textbox5然后点击button4我想搜索为具有示例10的BirthMonth的企业创建的文件然后在label7中显示结果。

public void writetext()
    {

        using (TextWriter writer = File.AppendText("filename.txt"))

        {
         writer.WriteLine("First name, {0} Lastname, {1} Phone,{2} Day of birth,{3} Month of Birth{4}", textBox1.Text, textBox2.Text, maskedTextBox1.Text, textBox4.Text, textBox3.Text);
         MessageBox.Show(String.Format("First Name,{0} Lastname, {1} Phone,{2} Day of birth,{3} Month of Birth{4}", textBox1.Text, textBox2.Text, maskedTextBox1.Text, textBox4.Text, textBox3.Text)); 
        }
        }
    public void reset()
    {
        textBox1.Text = "";
        textBox2.Text = "";
        textBox3.Text = "";
        textBox4.Text = "";
        maskedTextBox1.Text = "";
    }

private void button4_Click(object sender, EventArgs e)
    {
        string[] lines = File.ReadAllLines("filename.txt");  
    try{ 
        int month = Int32.Parse(textBox5.Text); 
        label7.Text = String.Format("Month of Birth {0}", lines[month]); 
        } 
    catch(Exception){ 
        label7.Text = "Invalid input"; 
   } 



    }
    public void readfile()
    {
        string[] lines = File.ReadAllLines("filename.txt");
        label6.Text = String.Join(Environment.NewLine, lines);

    }




First name, 99999 Lastname, 87t8t8 Phone,999-9999 Day of birth,ug Month of Birthoi
First name, 9898988 Lastname, 787877 Phone,999-9999 Day of birth,67 Month of Birth78
First name,  Lastname,  Phone,588-8888 Day of birth, Month of Birth
First name, ytyt Lastname,  Phone,   - Day of birth, Month of Birth
First name, iuiu Lastname,  Phone,   - Day of birth, Month of Birth
First name, 98989 Lastname,  Phone,   - Day of birth, Month of Birth
First name, plplpl Lastname,  Phone,   - Day of birth, Month of Birth
First name, okok Lastname, uihuhuh Phone,777-7777 Day of birth,54 Month of Birth76
First name, 090909 Lastname,  Phone,   - Day of birth, Month of Birth
First name, ijijij Lastname,  Phone,   - Day of birth, Month of Birth
First name, kjkj Lastname,  Phone,   - Day of birth, Month of Birth
First name,  Lastname,  Phone,   - Day of birth, Month of Birth
First name,  Lastname,  Phone,   - Day of birth, Month of Birth
First name, ygyg Lastname,  Phone,   - Day of birth, Month of Birth

显示的内容有问题

2 个答案: