Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
611 views
in Technique[技术] by (71.8m points)

c# - Using datasource with CheckBoxList

I use CheckBoxList in my Windows Forms application and am trying to apply a datasource for it.

Having a DataTable, 'dt', with columns id, name and ischecked, I use such code:

((ListBox)MyCheckBoxList).DataSource = dt;
((ListBox)MyCheckBoxList).DisplayMember = "name";
((ListBox)MyCheckBoxList).ValueMember = "id";

How do I set CheckState for all items in MyCheckBoxList?

I keep this value in my datatable and want to link them with MyCheckBoxList.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

I've decided my problem in two steps. First, I applied the datasource, and then in circle set the Checked property for each item like in the following code:

((ListBox)MyCheckBoxList).DataSource = dt;
((ListBox)MyCheckBoxList).DisplayMember = "name";
                    ...

for (int i = 0; i < folloving.Items.Count; i++ )
{
    DataRowView row = (DataRowView)MyCheckBoxList.Items[i];
    bool isChecked = Convert.ToBoolean(row["checked"]);
    MyCheckBoxList.SetItemChecked(i, isChecked);
}

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...