所以,我有一个checkListBox,我正在尝试获取复选框的值成员。目前,我可以获得一个项目的selectedValue。如果选中了多个项目,我会为每个项目获得相同的selectedValue。
这个框就像这样填充......
SqlConnection cn = new SqlConnection(Properties.Settings.Default.cs);
SqlDataAdapter da = new SqlDataAdapter();
da.SelectCommand = new SqlCommand("usp_getCustomers, cn);
DataSet ds = new DataSet();
da.Fill(ds, "usp_getCustomers");
chkListCustomer.DataSource = ds;
chkListCustomer.DisplayMember = "usp_getCustomers.name";
chkListCustomer.ValueMember = "usp_getCustomers.id";
chkListCustomer.SelectedIndex = -1;
点击按钮,这就是我正在做的尝试并获取所选值。它为我提供了一个项目的正确ID,但是如果选中了多个项目,它会为所有项目提供相同的ID。
foreach (int indexChecked in chkListCustomer.CheckedIndices)
{
MessageBox.Show("Index#: " + indexChecked.ToString() + ", is checked. Checked state is:" + chkListCustomer.SelectedValue.ToString() + ".");
}
示例输出是:
"Index#: 1, is checked. Checked state is:984"
"Index#: 2, is checked. Checked state is:984"
"Index#: 3, is checked. Checked state is:984"
感谢您的帮助!
答案 0 :(得分:1)
试试这个:
foreach (int indexChecked in chkListCustomer.CheckedIndices)
{
MessageBox.Show("Index#: " + indexChecked.ToString() +
", is checked. Checked state is:" +
chkListCustomer.Items[indexChecked].ToString() + ".");
}
答案 1 :(得分:1)
如果您实际上不需要索引,则只需使用the CheckedItems
property:
foreach (DataRowView checkedItem in chkListCustomer.CheckedItems)
{
MessageBox.Show("Checked item: "
+ checkedItem[chkListCustomer.ValueMember].ToString()
+ ".");
}
答案 2 :(得分:0)
你应该使用
chkListCustomer.GetItemCheckState(indexChecked).ToString()
而不是
chkListCustomer.SelectedValue.ToString()
有关CheckedIndices和CheckedListBox Class的有关MSDN的更多信息。
您也可以遍历.Items
属性:
foreach(object itemChecked in chkListCustomer.CheckedItems) {
// Use the IndexOf method to get the index of an item.
MessageBox.Show("Item with title: \"" + itemChecked.ToString() +
"\", is checked. Checked state is: " +
chkListCustomer.GetItemCheckState(chkListCustomer.Items.IndexOf(itemChecked)).ToString() + ".");
MessageBox.Show(itemChecked.ToString())
}
答案 3 :(得分:0)
修改了Ahmad Mageed在SO on this post找到的一段代码。这给了我每个
foreach (object itemChecked in chkListPatients.CheckedItems)
{
DataRow row = (itemChecked as DataRowView).Row;
string id = row[0].ToString();
MessageBox.Show(id);
}