将复选框中的项目填充到文本框中 [英] Populating Items from the checkbox into a textbox

问题描述

我从复选框中获取所选项目的列表

I am getting the list of selected items from the checkbox

public string getselecteditems(CheckBoxList CheckBoxList1)
    {
        var items = new StringBuilder();
        foreach (ListItem item in CheckBoxList1.Items)
        {
            if (item.Selected)
                items.Append(string.Format("{0},", item.Value));

        }
        return items.ToString().TrimEnd(',');


    }

我正在尝试填充复选框中选中的这个项目。

And I am trying to populate this item selected in checkbox.

private void populateselecteditems(string selecteditems, CheckBoxList CheckBoxList1)
    {
        if (!string.IsNullOrWhiteSpace(selecteditems))
        {
            string[] items = selecteditems.Split(',');
            foreach (ListItem item in CheckBoxList1.Items)
            {
                item.Selected = items.Where(c => c.Equals(item.Value))
                    .FirstOrDefault() != null;
            }
        }
       

    }

请帮帮我将此值分配给文本框（当我尝试下面的内容时，它会显示

Please help me how to assign this value to a textbox ( when I try the below, it shows

protected void Button1_Click(object sender, EventArgs e)
    {
            // Textbox1.Text = populated values should be here. 
        //Textbox1.Text = populateselecteditems(selecteditems ,CheckBoxList CheckBoxList1);
}
</pre>

推荐答案

试试这个：

Try this:

private string populateselecteditems(string selecteditems, CheckBoxList CheckBoxList1)
    {
        if (!string.IsNullOrWhiteSpace(selecteditems))
        {
            string[] items = selecteditems.Split(',');
            foreach (ListItem item in CheckBoxList1.Items)
            {
                item.Selected = items.Where(c => c.Equals(item.Value))
                    .FirstOrDefault() != null;
            }
        }
        return selecteditems;


    }

protected void Button1_Click(object sender, EventArgs e)
    {
            // Textbox1.Text = populated values should be here.
        //Textbox1.Text = populateselecteditems(selecteditems ,CheckBoxList CheckBoxList1);

       Textbox1.Text=populateselecteditems(selecteditems ,CheckBoxList CheckBoxList1);
}

试试这个..

try this..

protected void TextToCheckbox_Click(object sender, EventArgs e)
        {
            populateselecteditems(TextBox1.Text, CheckBoxList1);
        }
        protected void btnCheckboxtoTextbox_Click(object sender, EventArgs e)
        {
            TextBox1.Text = getselecteditems(CheckBoxList1);
        }

        private void populateselecteditems(string selecteditems, CheckBoxList CheckBoxList1)
        {
            if (!string.IsNullOrWhiteSpace(selecteditems))
            {
                string[] items = selecteditems.Split(',');
                foreach (ListItem item in CheckBoxList1.Items)
                    item.Selected = items.FirstOrDefault(k => k == item.Text) != null;

            }


        }
        public string getselecteditems(CheckBoxList CheckBoxList1)
        {
            string output = "";
            CheckBoxList1.Items.OfType<ListItem>().Where(k => k.Selected).ToList().ForEach(k => output += k + ",");
            return output.Trim(',');


        }

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