Question

我有一个搜索文本框I，然后是一个用于搜索记录的按钮。

我可以按ID和状态进行搜索。但我也希望使用文本框

搜索日期

这可能吗？

ASPNET

<div class="pull-right col-lg-11">
    <center>
       <asp:TextBox ID="txtSearch" runat="server" class="form-control" bordercolor="Black"></asp:TextBox>
  </center>
</div>
<br />
<div>
    <span class="input-group-btn">
        <asp:LinkButton ID="btnSearch" runat="server" class="btn btn"
            BackColor="CornflowerBlue" Style="color: White"
            OnClick="btnSearch_Click">
         <i class="fa fa-search"></i>
        </asp:LinkButton>
    </span>
</div>

以下是我在我的代码背后尝试的内容。

C＃代码：按钮点击

protected void btnSearch_Click(object sender, EventArgs e)
    {
        if (txtSearch.Text.Trim() == "")
        {
            GetPR();
        }
        else
        {
            GetPRSearch(txtSearch.Text);
        }
    }

MY GET

void GetPR()
    {
        con.Open();
        SqlCommand cmd = new SqlCommand();
        cmd.Connection = con;
        cmd.CommandText = "SELECT Receiving.ReceivingID, Receiving.POID, Receiving.FinalDeliveryDate, " +
            "Receiving.Status, Receiving.DateReceived, Receiving.ReceivedByID, Users.FirstName, Users.LastName, PO.CompanyName FROM Receiving " +
            "INNER JOIN Users ON Receiving.ReceivedByID=Users.UserID INNER JOIN PO ON Receiving.POID=PO.POID ORDER BY Receiving.DateReceived DESC";
        cmd.Parameters.AddWithValue("@UserID", Session["userid"].ToString());
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        DataSet ds = new DataSet();
        da.Fill(ds, "Receiving");
        lvPurchases.DataSource = ds;
        lvPurchases.DataBind();
        con.Close();
    }

void GetPRSearch(string keyword)
    {
        con.Open();
        SqlCommand cmd = new SqlCommand();
        cmd.Connection = con;
        cmd.CommandText = "SELECT Receiving.ReceivingID, Receiving.POID, Receiving.FinalDeliveryDate, " +
            "Receiving.Status, Receiving.DateReceived, Receiving.ReceivedByID, Users.FirstName, Users.LastName, PO.CompanyName FROM Receiving " +
            "INNER JOIN Users ON Receiving.ReceivedByID=Users.UserID INNER JOIN PO ON Receiving.POID=PO.POID " +
            "WHERE Receiving.ReceivingID LIKE '%" + keyword + "%' OR PO.CompanyName LIKE '%" + keyword + "%' OR Receiving.POID LIKE '%" + keyword + "%' " +
            "OR Receiving.DateReceived LIKE '%" + keyword + "%'";
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        DataSet ds = new DataSet();
        da.Fill(ds, "Receiving");
        lvPurchases.DataSource = ds;
        lvPurchases.DataBind();
        con.Close();
    }

通过使用此无法搜索“四月” 提前谢谢你们！建议非常感谢。

Answer 1

如果您的数据库中的值存储为日期时间SQL将自动将字符串转换为日期时间。所以你可以这样做：

SELECT * FROM tablename
WHERE tablename.date = '04/01/2016'

如果您想选择整个月的值，则需要选择范围：

SELECT * FROM tablename
WHERE tablename.date >= '04/01/2016'
AND tablename.date <= '04/30/2016'

如果您的值存储为字符串您需要将值转换为日期时间才能使范围起作用。这样做：

SELECT * FROM tablename
WHERE convert(datetime, tablename.date, 101) >= '04/01/2016'
AND convert(datetime, tablename.date, 101) <= '04/30/2016'

如果您让用户只选择整个月而不是一天，我会使用下拉列表而不是文本框。

Answer 2

在考虑使用sql server的情况下，您可以简单地执行此操作。

"Select * from yourtable WHERE Datename(month,YOURDATEColumn) like '%'+ keyword + '%'"

这样内置函数将以当前语言检索月份名称。

您可以在此处找到有关此https://msdn.microsoft.com/es-es/library/ms174395%28v=sql.120%29.aspx

的更多信息

无法搜索日期（月份字）

2 个答案: