Question

我正在尝试根据列表框选择将文本框绑定到数据表行。

public Edit(MovieSetSource movieSource)
    {
        InitializeComponent();
        bindingSource = new BindingSource();
        bindingSource.DataSource = movieSource.GetMovies().Tables["Movie"];
        movieListBox.DataSource = bindingSource;
        movieListBox.ValueMember = "Name";

        nameText.DataBindings.Add(new Binding("Text", movieListBox, "SelectedItem.Name", true, DataSourceUpdateMode.OnPropertyChanged));
        producerText.DataBindings.Add(new Binding("Text", movieListBox, "SelectedItem.Producer", true, DataSourceUpdateMode.OnPropertyChanged));
        releaseYearText.DataBindings.Add(new Binding("Text", movieListBox, "SelectedItem.Release Year", true, DataSourceUpdateMode.OnPropertyChanged));
    }

这是我绑定电影的方式。

MovieSetSource类在这里：

public class MovieSetSource : ISource
{

    private DataSet _movieSet;
    private SqlDataAdapter _movieAdapter;
    private RottenTomatoesRestClient RTclient;

    public MovieSetSource()
    {

        var movieConnection = new SqlConnection(Properties.Settings.Default.moviesConnectionString);
        _movieSet = new DataSet();
        _movieAdapter = new SqlDataAdapter("Select * From Movie", movieConnection);
        RTclient = new RottenTomatoesRestClient("jcy6eyga8txee776kbn3mfe7");

        SqlCommandBuilder movieSQLBuilder = new SqlCommandBuilder(_movieAdapter);
        _movieAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;
        _movieAdapter.Fill(_movieSet, "Movie");
    }

    public DataSet GetMovies()
    {
        return _movieSet;
    }

}

TextBox的Text属性应使用列表框中的selectedItem进行更新。它还应该在textBox中进行编辑后保存。

Answer 1

您的代码需要进行一些调整。至于我不确定您的数据源中的确切名称，这里有一个小示例代码（带有虚构值），显示您应该如何面对这种情况：

DataTable dt = new DataTable();
dt.Columns.Add("Name");
dt.Columns.Add("Country");

dt.Rows.Add("Name1", "Country1");
dt.Rows.Add("Name2", "Country2");

BindingSource bindingSource = new BindingSource();
bindingSource.DataSource = dt;
movieListBox.DataSource = bindingSource;
movieListBox.ValueMember = "Name";

textBoxName.DataBindings.Add(new Binding("Text", movieListBox.DataSource, "Name", true, DataSourceUpdateMode.OnPropertyChanged));
textBoxCountry.DataBindings.Add(new Binding("Text", movieListBox.DataSource, "Country", true, DataSourceUpdateMode.OnPropertyChanged));

如何基于列表视图选择来数据绑定文本框

1 个答案: