C#checkedListBox的最后一项未显示
此代码预过滤dataGridView,以便仅显示列表中的选中项 我面临的问题是,代码每次都会以某种方式忽略最后一项,除非我取消选中,再次选中并按“Go” 这是我的代码:C#checkedListBox的最后一项未显示,c#,checkedlistbox,C#,Checkedlistbox,此代码预过滤dataGridView,以便仅显示列表中的选中项 我面临的问题是,代码每次都会以某种方式忽略最后一项,除非我取消选中,再次选中并按“Go” 这是我的代码: public partial class Notifications : Form { string filterstring = ""; int count = 0; private void checkedListBox_ItemCheck(object sender, System.EventAr
public partial class Notifications : Form
{
string filterstring = "";
int count = 0;
private void checkedListBox_ItemCheck(object sender, System.EventArgs e)
{
// Loop through all items in the checkedBoxes.
foreach (object itemChecked in checkedListBox.CheckedItems)
{
if (count != 0)
{
filterstring += "OR Responsible = '" + itemChecked.ToString() + "'";
}
else
filterstring += "Responsible = '" + itemChecked.ToString() + "'";
count += 1;
}
}
private void button1_Click(object sender, EventArgs e)
{
DataTableCollection tables = myDatabaseDataSet.Tables;
DataView view = new DataView(tables[0]);
BindingSource source = new BindingSource();
source.DataSource = view;
dataGridView1.DataSource = source;
source.Filter = filterstring;
}
我知道这个解决办法可能很傻,但我想不出来
private void checkedListBox_ItemCheck(object sender, ItemCheckEventArgs e)
{
if (e.NewValue == CheckState.Checked)
filterstring = "Responsible = '" + checkedListBox.Items[e.Index].ToString() + "' OR";
// Loop through all items in the checkedBoxes.
foreach (object itemChecked in checkedListBox.CheckedItems)
{
filterstring += " Responsible = '" + itemChecked.ToString() + "' OR";
}
filterstring = filterstring.Substring(0, filterstring.LastIndexOf("OR"));
}
您必须检查单击项的新值。如果选中,则可以将其包含在筛选字符串中。此外,删除最后一个或比在每个迭代器中删除if要好得多。
编辑:您的事件是EventArgs,但它应该是ItemCheckEventArgs
您必须检查单击项的新值。如果选中,则可以将其包含在筛选字符串中。此外,删除最后一个或比在每个迭代器中删除if要好得多。
编辑:您的事件是EventArgs,但它应该是ItemCheckEventArgs检查状态直到ItemCheck事件发生后才更新。检查状态直到ItemCheck事件发生后才更新。