如何以编程方式在 Datatgrid WPF 中的 DataGridTextColumn 中绑定组合框

Question

我想要的是我的组合框加载在我的 DataGrid 的第一行中，我的标题由复选框组成

ObservableCollection<dynamic> items = new ObservableCollection<dynamic>();
private IEnumerable<string> PropertyNames; //Store the properties names of the dynamic object

//首先我正在通过Excel读取我的dt；

            DataSet result = new DataSet();
            DataTable dt = new DataTable();
            if (fileName.EndsWith(".xlsx"))
            {
                // Reading from a binary Excel file (format; *.xlsx)
                FileStream stream = File.Open(fileName, FileMode.Open, FileAccess.Read);
                IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);
                result = excelReader.AsDataSet();
                dt = result.Tables[0];
                excelReader.Close();
            }
            if (fileName.EndsWith(".xls"))
            {
                // Reading from a binary Excel file ('97-2003 format; *.xls)
                FileStream stream = File.Open(fileName, FileMode.Open, FileAccess.Read);
                IExcelDataReader excelReader = ExcelReaderFactory.CreateBinaryReader(stream);
                result = excelReader.AsDataSet();
                excelReader.Close();
            }

// 然后我根据我的 dt 列数创建我的标题，如附件中所示

         for (int i = 0; i < dt.Columns.Count; i++)
            {

                DataGridTextColumn checkBoxColumn = new DataGridTextColumn();

                System.Windows.Controls.CheckBox headerCheckBox = new System.Windows.Controls.CheckBox();
                headerCheckBox.Content = "UnNamedColumn" + i;

                checkBoxColumn.Header = headerCheckBox;
                checkBoxColumn.Binding = new System.Windows.Data.Binding(dt.Rows[0][i].ToString());

                dataGrid.Columns.Add(checkBoxColumn);
            }

// 我正在尝试在 DataGrid 的第一行加载组合框

            PropertyNames = new List<string>();
            items.Clear();
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                if (i == 0)
                {
                    dynamic item = new DynamicObjectClass();
                    for (int j = 0; j < dt.Columns.Count; j++)
                    {
                        //    DataGridColumn columns = GetNewComboBoxColumn("UnNamedColumn" + j, dt.Rows[0][j].ToString(), binddt)
                        var cb = new System.Windows.Controls.ComboBox();
                        cb.ItemsSource = new List<string> { "C50", "C40", "C30" };
                        cb.SelectedItem = new System.Windows.Data.Binding(dt.Rows[0][j].ToString());
                        item.TrySetMember(new SetPropertyBinder(dt.Rows[0][j].ToString()), cb);
                    }
                    PropertyNames = item.GetDynamicMemberNames();
                    items.Add(item);
                    dataGrid.ItemsSource = items;
                    break;
                }
            }

// 最后我将整个 dt 附加到数据网格中

        for (int i = 0; i < dt.Rows.Count; i++)
            {
                dynamic item = new DynamicObjectClass();
                for (int j = 0; j < dt.Columns.Count; j++)
                {  
                    item.TrySetMember(new SetPropertyBinder(dt.Rows[0][j].ToString()), dt.Rows[i][j].ToString());
                }                    
                PropertyNames = item.GetDynamicMemberNames();
                items.Add(item);
                dataGrid.ItemsSource = items;
            }

Answer 1

您可以执行以下操作并用您的数据替换List ：

var bindingSource = new BindingSource();
bindingSource.DataSource = new List<string> { "C50", "C40", "C30" };

comboBox1.DataSource = bindingSource.DataSource;

comboBox1.DisplayMember = new System.Windows.Data.Binding(dt.Rows[0][j].ToString());
comboBox1.ValueMember = new System.Windows.Data.Binding(dt.Rows[0][j].ToString());

来源： 如何将列表绑定到组合框？