搜索加载并将.txt文件中的数据替换为C＃并在C＃中显示

Question

如何搜索加载并将.txt文件中的数据替换为并显示

我在txt.file中的数据是

1010w23#Mild#UnknwonStreet#001234521

我想用这个改变它

1010w34#Mild#UnknownStreet#001235421

我在使用Windows表单应用程序，而且我是C＃的新手

我使用此

保存数据

string[] dataEmployee = new string[4];

dataEmployee[0] = txtIdEmployee.Text;
dataEmployee[1] = txtName.Text;
dataEmployee[2] = txtAddress.Text;
dataEmployee[3] = txtContact.Text;

string.Join("#", dataEmployee);

TextWriter writeDataEmployee = new StreamWriter(@"dataemployee.txt", true);

Answer 1

尝试类似这样的事情，虽然没有更多信息我们无法确定您到底需要什么：

string text = File.ReadAllText(fileName);    //fileName is the path to your txt file
string[] fields = text.Split('#');
fields[0] = fields[0].Replace("23", "34");
fields[3] = fields[3].Replace("45", "54");
txtResult.Text = String.Join("#", fields);    //txtResult is some textbox in your form

Answer 2

尝试如下，它会帮助你...

在您的表单中创建4 Text boxes和one button，并将其命名如下。

TextBoxes：

txtEmployeeIDFind
txtEmployeeIDReplace
txtContactReplace
txtContactFind

按钮：

btnFindandReplace

并运行表单现在用户在文本框中输入其值，如下所示

在Button click event上写下如下的编码......

   private void btnFindandReplace_Click(object sender, EventArgs e)
    {
        string text = System.IO.File.ReadAllText("dataemployee.txt");
        text = text.Replace(txtEmployeeIDFind.Text, txtEmployeeIDReplace.Text).Replace(txtContactFind.Text, txtContactReplace.Text);
        System.IO.File.WriteAllText("dataemployee.txt", text);
    }