我的页面上有几个文本框,想要用数据库中的数据填充它们。我做查询并得到(在我的情况下)一个电影对象,我用它来填充文本框,但它不起作用。 这是我的代码:
private void FilmInfo(int gekozenFilm)
{
BLFilm blFilm = new BLFilm();
Film film = blFilm.GetFilmById(gekozenFilm);
TextBoxFilm.Text = film.Naam;
TextBoxRelease.Text = film.Releasedatum.ToString();
TextBoxTrailer.Text = film.Filmpje;
TextBoxAfbeelding.Text = film.Afbeelding;
}
电影中有一个电影对象但由于某种原因,文本框不显示文本。
整个页面的代码(相关):
protected void ListBoxMovies_SelectedIndexChanged(object sender, EventArgs e)
{
int gekozenFilm;
gekozenFilm = Convert.ToInt32(ListBoxMovies.SelectedItem.Value);
FilmInfo(gekozenFilm);
}
private void FilmInfo(int gekozenFilm)
{
BLFilm blFilm = new BLFilm();
Film film = blFilm.GetFilmById(gekozenFilm);
TextBoxFilm.Text = film.Naam;
TextBoxRelease.Text = film.Releasedatum.ToString();
TextBoxTrailer.Text = film.Filmpje;
TextBoxAfbeelding.Text = film.Afbeelding;
}
.aspx页面
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<section id="context">
<article id="left">
<h2>Movie CRUD</h2>
<div class="seperator">
<!-- seperator -->
<asp:Label ID="LabelNaam" runat="server" Text="Naam"></asp:Label>
<asp:TextBox ID="TextBoxFilm" runat="server" Width="250px"></asp:TextBox>
<br />
<asp:Label ID="LabelRelease" runat="server" Text="Releasedatum"></asp:Label>
<asp:TextBox ID="TextBoxRelease" runat="server" Width="185px"></asp:TextBox>
<br />
<asp:Label ID="LabelTrailer" runat="server" Text="Trailer"></asp:Label>
<asp:TextBox ID="TextBoxTrailer" runat="server" Width="241px"></asp:TextBox>
<br />
<asp:Label ID="Label1" runat="server" Text="Afbeelding"></asp:Label>
<asp:TextBox ID="TextBoxAfbeelding" runat="server" Width="209px"></asp:TextBox>
</div>
</article>
<article id="right">
<h2>Movies</h2>
<asp:ListBox ID="ListBoxMovies" runat="server" Height="141px" Width="315px" OnSelectedIndexChanged="ListBoxMovies_SelectedIndexChanged" ViewStateMode="Inherit" AutoPostBack="True"></asp:ListBox>
</article>
</section>
</form>
我尝试过几乎无处不在的断点,文本框有文本值,但在页面上它仍然是空的?
答案 0 :(得分:2)
检查您的updatetemplate是否包含要填充的文本框是个好主意。
答案 1 :(得分:0)
为什么不使用Recordset? 它非常易于使用,我认为对您的情况有益: Here more info