如何在选择特定组合框项后从数据库表中填充包含多列的列表框？ [英] how to populate a listbox with multiple columns from a databasetable after the selection of a particular combo box item?

问题描述

我已经选中了所有按钮，如果我点击选择所有按钮，我在支票列表框中有一些名称，那么选中列表框中的所有名称都必须选择............所以

首先我必须选择所有项目后，这些项目应该移动到列表框。



谢谢你

i have select all button and i have some names in checked list box if i click select all button then all names in checked list box have to select............so
first i have to select all items after that those items should be move to listbox.

thank u

推荐答案

尝试如下

try like below

List<string> lstString = new List<string>();
foreach (ListItem li1 in checkedListBoxId.CheckedItems)
                {
                    if (li1.Selected == true)
                    {
                        lstString.Add(li1.Text);
                    }
                }

secondListBoxId.DataSource = lstString.Add;

希望这有助于

Hope this helps

假设您要将Listbox1的选定项目移动到Listbox2。

移动功能：

assuming, you want to move selected items of Listbox1 to Listbox2.
Function for moving:

private void MoveListBoxItems(ListBox source, ListBox destination)
{
    ListBox.SelectedObjectCollection sourceItems = source.SelectedItems;
    foreach (var item in sourceItems)
    {
        destination.Items.Add(item);
    }
    while (source.SelectedItems.Count > 0)
    {
        source.Items.Remove(source.SelectedItems[0]);
    }
}

按钮点击呼叫移动功能

Button Click for call moving function

private void first2second_Click(object sender, EventArgs e)
{
    MoveListBoxItems(FirstListbox, LastListbox);
}

foreach (ListItem li1 in checkedListBoxId.CheckedItems)
                {
                     (li1.Selected = true)
                }

我认为你想要的是什么？

I think is what you want?

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