基于数据表绑定每行中不同数据的radiogroup

Question

我添加了gridcontrol有两列，第1列表示字符串并从datatable绑定，另一列表示radiogroupitem但我想在每行中添加不同的radiobutton值，基于第一行添加（精细 - 坏）和下一行添加（这里）的问题 - 不在这里）和最后一行添加（尚未 - 是 - 今晚）

//bind question column
DataTable dtt = new DataTable();

dtt.Columns.Add("ID", typeof(string));

dtt.Rows.Add("How are you ?");
dtt.Rows.Add("Where are you ?");
dtt.Rows.Add("are you sleepy ?");

gridControl1.DataSource = dtt;

gridControl1.ForceInitialize();

// Bind radiobuttonitem
DataTable dataSource = new DataTable();
dataSource.Columns.Add("TypeID", typeof(int));
dataSource.Columns.Add("TypeName", typeof(string));

dataSource.Rows.Add(new object[] { 1, "A" });
dataSource.Rows.Add(new object[] { 2, "B" });
dataSource.Rows.Add(new object[] { 3, "C" });

foreach (DataRow dr in dataSource.Rows)
   repositoryItemRadioGroup1.Items
        .Add(new DevExpress.XtraEditors.Controls.RadioGroupItem(dr["TypeID"], dr["TypeName"].ToString()));

https://imgur.com/a/25Ofu

Answer 1

使用CustomRowCellEdit事件为单个单元格分配不同的编辑器。您可以将问题和RepositoryItemRadioGroups存储在字典中：

Dictionary<string, RepositoryItemRadioGroup> repositories = new Dictionary<string, RepositoryItemRadioGroup>();

RepositoryItemRadioGroup group1 = new RepositoryItemRadioGroup();
group1.Items.Add(new DevExpress.XtraEditors.Controls.RadioGroupItem("Fine", "Fine"));
group1.Items.Add(new DevExpress.XtraEditors.Controls.RadioGroupItem("Bad", "Bad"));
repositories.Add("How are you?", group1);

RepositoryItemRadioGroup group2 = new RepositoryItemRadioGroup();
group2.Items.Add(new DevExpress.XtraEditors.Controls.RadioGroupItem("Here", "Here"));
group2.Items.Add(new DevExpress.XtraEditors.Controls.RadioGroupItem("There", "There"));
repositories.Add("Where are you?", group2);

在CustomRowCellEdit事件处理程序中，调用GetRowCellValue方法来获取问题，从字典中获取相应的存储库项并设置e.RepositoryItem参数：

void GridView1_CustomRowCellEdit(object sender, DevExpress.XtraGrid.Views.Grid.CustomRowCellEditEventArgs e) {
    GridView view = sender as GridView;
    if (e.Column.FieldName == "Answer" && view.IsValidRowHandle(e.RowHandle)) {
        string question = (string)view.GetRowCellValue(e.RowHandle, "Question");
        RepositoryItemRadioGroup item;
        if(repositories.TryGetValue(question, out item))
            e.RepositoryItem = item;
    }
}

另见：Modify and Validate Cell Values