C#将Winform上的TextBox和ComBox的值导入和导出

一、将所有控件上的值导出到文件

1.使用递归遍历窗体上所有的TextBox和ComBox，将控件名称和控件的值存入List

实体类Result.cs

/// <summary>
/// 结果数据
/// </summary>
public class Result
{
/// <summary>
/// 文本框名称
/// </summary>
public string TextBoxName { get; set; }
 
/// <summary>
/// 文本框的值
/// </summary>
public string TextBoxValue { get; set; }
}

递归获取想要的控件

private void GetAllTextAndCombox(Control controls)
{
    foreach (Control control in controls.Controls)
    {
        if (control is TextBox || control is ComboBox)
        {
            AllControls.Add(control);
        }
        if (control.Controls.Count > 0)
        {
            GetAllTextAndCombox(control);
        }
    }
}

获取控件的名称和值

List<Result> Results=new List<Result>();
for (int i = 0; i < AllControls.Count; i++)
{
    Result result = new Result();
    result.TextBoxName = AllControls[i].Name;
    result.TextBoxValue = AllControls[i].Text;
    Results.Add(result);
}

2.将实体序列化成字符串，保存字符串

if (Results.Count > 0)
            {
                string Resultstr = JsonConvert.SerializeObject(Results);
                if (string.IsNullOrEmpty(Resultstr)) return;
                SaveFileDialog saveFile = new SaveFileDialog();
                saveFile.Title = "请选择保存文件路径";
                saveFile.Filter = "数据文件(*.Single)|*.Single";
                saveFile.OverwritePrompt = true;  //是否覆盖当前文件
                saveFile.RestoreDirectory = true;  //还原目录
                if (saveFile.ShowDialog() == DialogResult.OK)
                {
                    if (!File.Exists(saveFile.FileName))
                    {
                        using (File.Create(saveFile.FileName)) { }
                    }
                    using (StreamWriter sw = new StreamWriter(saveFile.FileName, false))
                    {
                        sw.Write(Resultstr);
                        sw.Close();//写入
                        MessageBox.Show("已保存！");
                    }
                }
            }

二、从文件导入所有控件的值

读取文件内容，反序列化成实体，循环给控件赋值。

OpenFileDialog openFile = new OpenFileDialog();
openFile.Title = "请选择保存文件路径";
openFile.Filter = "数据文件(*.Single)|*.Single";
openFile.Multiselect = false;
if (openFile.ShowDialog() == DialogResult.OK)
{
    using (StreamReader sr = new StreamReader(openFile.FileName))
    {
        string Resultstr = sr.ReadToEnd();
        if (string.IsNullOrEmpty(Resultstr)) return;
        Results = JsonConvert.DeserializeObject<List<Result>>(Resultstr);
        if (Results.Count <= 0) return;
        for (int i = 0; i < Results.Count; i++)
        {
            Control ct = AllControls.Where(o => o.Name == Results[i].TextBoxName).FirstOrDefault();
            if (ct != null)
            {
                ct.Text = Results[i].TextBoxValue;
            }
        }
        sr.Close();
    }
}