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vs2010 と ms sql を (linq to sql) SP と共に使用して、p1 p2 p3を渡し、選択したデータをリピーターに取得します。問題は、リピーターが p1、p2、p3 を無視し、ムービー テーブルにすべてのデータを表示することです。3 つのテーブルがあります:(映画 , 監督, 映画監督)

SP:

ALTER PROCEDURE [dbo].[SelectMovie]
    @P1 nvarchar(50),
    @P2 nvarchar(255)= null,
    @P3 nvarchar(255)= null   AS SET NOCOUNT ON 
    SET TRANSACTION ISOLATION LEVEL READ COMMITTED 
    SELECT  
        Movie.Movie_ID
        , Movie.title
        , Movie.image
        , Movie.actors
        , Movie.description
        ,Director.name 
    FROM 
        Movie 
            INNER JOIN Movie-director ON Movie.Movie_ID = Movie-director.Movie_ID 
            INNER JOIN Director ON Movie-director.Director_ID = Director.Director_ID 
    WHERE 
        (title LIKE '%' + (@p1) +'%') 
        OR 
        (actors LIKE '%' + (@p2) +'%') 
        OR 
        (cat_ID LIKE '%' + (@p3) +'%')

ASPX:

<asp:Repeater ID="Repeater1" runat="server" >
<HeaderTemplate> </HeaderTemplate>
<ItemTemplate>
    <div style="width:100%;">
        <div class="excerpt">
            <a href="movie_details.aspx?id=<%# DataBinder.Eval(Container.DataItem, "Movie_ID")%>" class="thumb" title="An image">
                <img src="<%# DataBinder.Eval(Container.DataItem, "image")%>" alt="Post" style="opacity: 1; float:left; width:80px ; height:100px; border:3px solid #fff ; margin:5px;">
            </a> 
            <a href="movie_details.aspx?id=<%# DataBinder.Eval(Container.DataItem, "Movie_ID")%>" class="header">
                <h6>
                    <%# DataBinder.Eval(Container.DataItem, "title")%>
                    ( <%# DataBinder.Eval(Container.DataItem, "actors")%>)
                </h6>
            </a> 
            <div style="padding:5px;">
                <%# DataBinder.Eval(Container.DataItem, "description")%>
            </div>  
            <div style="padding:5px;">
                <%# DataBinder.Eval(Container.DataItem, "name")%>
            </div> 
        </div> 
    </div>
    <br /> 
    <hr />
</ItemTemplate>

C#:

CDTDataContext dc = new CDTDataContext(); 
protected void Page_Load(object sender, EventArgs e)
{
        if (!IsPostBack){ }
} 
protected void Button1_Click(object sender, EventArgs e) 
{
    string Cat_ID = DropDownList1.SelectedValue;
    string keyword1 = TextBox2.Text;
    string keyword2 = TextBox3.Text;
    int? cid = int.Parse(cat_id); 
    Repeater1.DataSource = dc.SelectMovie(keyword1, keyword2, cid); 
    Repeater1.DataBind();
}
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1 に答える 1

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SQLOR のため、空の文字列を渡すと、次のすべてのレコードと一致するため、クエリが間違っていると思いますTable。

ALTER PROCEDURE [dbo].[SelectMovie] @P1 NVARCHAR(50)
    ,@P2 NVARCHAR(255) = NULL
    ,@P3 NVARCHAR(255) = NULL
AS
SET NOCOUNT ON
SET TRANSACTION ISOLATION LEVEL READ COMMITTED

SELECT Movie.Movie_ID
    ,Movie.title
    ,Movie.IMAGE
    ,Movie.actors
    ,Movie.description
    ,Director.NAME
FROM Movie
INNER JOIN Movie - director ON Movie.Movie_ID = Movie - director.Movie_ID
INNER JOIN Director ON Movie - director.Director_ID = Director.Director_ID
WHERE (title LIKE '%' + (@p1) + '%') --title has to be matched
    AND (
           (
                    actors LIKE '%' + (@p2) + '%' AND @p2 IS NOT NULL) --match only then when @p2 is not null
        OR (
                    cat_ID = @p3 OR @p3 IS NULL --if @p3 IS NULL then do not filter by @p3
           )
        )
于 2013-03-05T08:41:47.527 に答える