如何根据用户选择的下拉列表将日历日期设置为不可选择? [英] How to set the calendar dates unselectable accordingly to the dropdownlist users select?

问题描述

如何根据用户选择的DropDownList中的名称将日历日期设置为不可选择?

换句话说，DropDownList中的每个名称都将设置不同的不可选择日期，我尝试使用以下代码执行我的程序，但似乎无法正常工作.

我该怎么办?

How do i set the calendar dates unselectable accordingly to the name in the DropDownList the users select?

In other words, each name in the DropDownList will have different unselectable dates set and i tried to use the following codes to execute my program but it seems to be not working.

How do i do so?

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
    if (DropDownList1.SelectedItem.Text == "WeddingPlanner1")
    {
        if (e.Day.Date.Month == 7 || e.Day.Date.Month == 9 || e.Day.Date.Month == 12)
    {

        if (e.Day.Date.Day == 5 || e.Day.Date.Day == 14 || e.Day.Date.Day == 18)
        {
            e.Day.IsSelectable = false;
            e.Cell.ForeColor = System.Drawing.Color.Black;
            e.Cell.BackColor = System.Drawing.Color.White;
            e.Cell.Font.Bold = true;
        }
    }
}

推荐答案

为DropDownList1
设置AutoPostBack为true

set AutoPostBack true for DropDownList1

<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" >

之后，将您的代码移至日历控件的Day渲染事件中

after that, move your code in to Day render event of your calendar control

protected void Calendar1_DayRender(object sender, DayRenderEventArgs e)
{
    if (DropDownList1.SelectedItem.Text == "WeddingPlanner1")
    {
        if (e.Day.Date.Month == 7 || e.Day.Date.Month == 9 || e.Day.Date.Month == 12)
        {

            if (e.Day.Date.Day == 5 || e.Day.Date.Day == 14 || e.Day.Date.Day == 18)
            {
                e.Day.IsSelectable = false;
                e.Cell.ForeColor = System.Drawing.Color.Black;
                e.Cell.BackColor = System.Drawing.Color.White;
                e.Cell.Font.Bold = true;
            }
        }
    }
}

您知道如何添加上述事件吗?

转到日历控件的属性，然后转到事件选项卡，找到DayRender并双击它.

You know how to add above event?

go to properties of your calendar control and then go to events tab and find the DayRender and double click on it.

这篇关于如何根据用户选择的下拉列表将日历日期设置为不可选择?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！