Question

我正在使用JQuery创建自动填充输入文本。问题是删除输入后，结果仍然显示：

这是剧本：

    Dim str As String
    Dim transtype As String
    Dim transid As String
    Dim quantityout As Integer
    Dim discount As Integer
    Dim remarks As String
    cnn.Open()

    For x As Integer = 0 To DataGridView1.Rows.Count - 1

        transtype = "PI"
        transid = 1
        quantityout = 0
        discount = 0
        remarks = "Nothing"

        str = "insert into purchase.detail (TransactionType, TransactionId, ItemId, BatchNo, Rate, ExpiryDate, Quantity, QuantityOut, Total, Discount, Remarks) values (@transtype, @transid, @ItemId, @BatchNo, @Rate, @ExpiryDate, @Quantity, @qout, @Total, @discount, @remarks)"

        Dim cmd3 As New SqlCommand(str, cnn)
        cmd3.Parameters.AddWithValue("@ItemId", DataGridView1.Rows(x).Cells("itemid").Value)
        cmd3.Parameters.AddWithValue("@BatchNo", DataGridView1.Rows(x).Cells("batchno").Value)
        cmd3.Parameters.AddWithValue("@Rate", DataGridView1.Rows(x).Cells("rate").Value)
        cmd3.Parameters.AddWithValue("@ExpiryDate", DataGridView1.Rows(x).Cells("expirydate").Value)
        cmd3.Parameters.AddWithValue("@Quantity", DataGridView1.Rows(x).Cells("quantity").Value)
        cmd3.Parameters.AddWithValue("@transtype", transtype)
        cmd3.Parameters.AddWithValue("@transid", transid)
        cmd3.Parameters.AddWithValue("@qout", quantityout)
        cmd3.Parameters.AddWithValue("@Total", DataGridView1.Rows(x).Cells("total").Value)
        cmd3.Parameters.AddWithValue("@discount", discount)
        cmd3.Parameters.AddWithValue("@remarks", remarks)
        cmd3.ExecuteNonQuery()
        cmd3.Dispose()
    Next
    cnn.Close()

这是HTML部分：

function autocomplet() {

    var min_length = 0; // min caracters to display the autocomplete
    var keyword = $('#especialidad_doctor').val();
    if (keyword.length >= min_length) {
        $.ajax({
            url: 'buscar_especialidad.php',
            type: 'POST',
            data: {keyword:keyword},
            success:function(data){
                $('#especialidad_id').show();
                $('#especialidad_id').html(data);
            }
        });
    } else {
        $('#especialidad_id').hide();
    }
}

我该如何解决这个问题？

Answer 1

删除equal标志。如果您的输入没有字符，则其长度为0，因此与>= min_length相比，它会返回true。所以else，块将不再起作用

if (keyword.length > min_length) {

}

Answer 2

您可以使用Easyautocomplete它功能强大且易于设置：

https://github.com/pawelczak/EasyAutocomplete

自动完成功能不会隐藏

2 个答案: