Question

我正在尝试创建一个ASP.NET网页来输出文本框，然后用户将在此文本框中输入密钥，并使用该密钥在SQL代码中输入WHERE条件以输出与密钥匹配的数据。例如，用户在文本框中输入ArtistID，我需要使用

打印表SPEEDOFSALEREPORT

SELECT * FROM SPEEDOFSALEREPORT WHERE ArtistID =“用户刚刚输入的密钥”

但我不知道怎么做。我在下面的代码创建一个文本框并打印表中的所有行。请给我一个提示。我整天都在谷歌搜索，但找不到答案。谢谢。

这是我更新的Default.aspx

    <body>
    <form id="form1" runat="server">
    <asp:TextBox ID="txtArtistID" runat="server" /><br /><br />
    <asp:Button ID="btnSearch" runat="server" Text="Search" CssClass="submit" />

    <div>
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
            DataSourceID="SqlDataSource1">
            <Columns>
                <asp:BoundField DataField="TRANSACTIONID" HeaderText="TRANSACTIONID" 
                    SortExpression="TRANSACTIONID" />
                <asp:BoundField DataField="WORKID" HeaderText="WORKID" 
                    SortExpression="WORKID" />
                <asp:BoundField DataField="ARTISTID" HeaderText="ARTISTID" 
                    SortExpression="ARTISTID" />
                <asp:BoundField DataField="DATEACQUIRED" HeaderText="DATEACQUIRED" 
                    SortExpression="DATEACQUIRED" />
                <asp:BoundField DataField="DATESOLDID" HeaderText="DATESOLDID" 
                    SortExpression="DATESOLDID" />
                <asp:BoundField DataField="TURNAROUNDDAYS" HeaderText="TURNAROUNDDAYS" 
                    SortExpression="TURNAROUNDDAYS" />
                <asp:BoundField DataField="ASKINGPRICE" HeaderText="ASKINGPRICE" 
                    SortExpression="ASKINGPRICE" />
                <asp:BoundField DataField="SALESPRICE" HeaderText="SALESPRICE" 
                    SortExpression="SALESPRICE" />
                <asp:BoundField DataField="SALESMARGIN" HeaderText="SALESMARGIN" 
                    SortExpression="SALESMARGIN" />
            </Columns>
        </asp:GridView>
    </div>

    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
    ConnectionString="Data Source=oracle2;User ID=****;Password=****;Unicode=True" 
    ProviderName="System.Data.OracleClient" 
    SelectCommand="SELECT * FROM SPEEDOFSALEREPORT WHERE ARTISTID = @artistID;">

    <SelectParameters>
        <asp:ControlParameter Name="artistID" ControlID="txtArtistID" PropertyName="Text" />
    </SelectParameter>
</asp:SqlDataSource>

    </form>
</body>

Answer 1

检查此行：

 <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="Data Source=oracle2;User ID=******;Password=***********;Unicode=True" 
        ProviderName="System.Data.OracleClient" 
        SelectCommand="SELECT * FROM SPEEDOFSALEREPORT">

正确使用：

 <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="Data Source=oracle2;User ID=******;Password=***********;Unicode=True" 
        ProviderName="System.Data.OracleClient" 
        SelectCommand="SELECT * FROM SPEEDOFSALEREPORT"
        FilterExpression="Artistid='{0}'">

       <FilterParameters><asp:ControlParameter Name="" ControlID="ArtistID" PropertyName="Value"/>  
        </FilterParameters>

Answer 2

您需要使用ArtistID作为参数，还可以更改文本框并将按钮提交到ASP控件，如下所示：

<asp:TextBox ID="txtArtistID" runat="server" /><br /><br />
<asp:Button ID="btnSearch" runat="server" Text="Search" CssClass="submit" />
<asp:SqlDataSource ID="SqlDataSource1" runat="server" 
    ConnectionString="Data Source=oracle2;User ID=******;Password=***********;Unicode=True" 
    ProviderName="System.Data.OracleClient" 
    SelectCommand="SELECT * FROM SPEEDOFSALEREPORT WHERE ARTISTID = @artistID;">
    <SelectParameters>
        <asp:ControlParameter Name="artistID" ControlID="txtArtistID" PropertyName="Text" />
    </SelectParameters>
</asp:SqlDataSource>

然后在代码后面的按钮上单击网格（VB.NET）：

Protected Sub btnSearch_Click(sender As Object, e As EventArgs) Handles btnSearch.Click
    GridView1.DataBind()
End Sub

或（C＃）：

protected void btnSearch_Click(Object sender, EventArgs e)
{
    GridView1.DataBind();
}

Answer 3

protected void Button1_Click(object sender, EventArgs e){
        if (TextBox1.Text != ""){
        con.Open();
        int i = 0;
        SqlCommand cmd0 = new SqlCommand("select noticeid from TBLnotice where noticeid='" + TextBox1.Text + "'", con);
        i= int.Parse(cmd0.ExecuteScalar().ToString());
        if (i > 0){
            SqlCommand cmd1 = new SqlCommand("select notice from TBLnotice where noticeid='" + TextBox1.Text + "'", con);
            string name = cmd1.ExecuteScalar().ToString();
            txtadds.Text = name;
            TextBox1.Text = "";
            txtadds.Text = "";
            con.Close();
        }
        else{
            Label7.Visible = true;
            con.Close();
        }
    }
}

ASP。 NET网页：创建一个搜索框以从Oracle中的表中搜索数据

3 个答案: