datagridview

问题 I am making a WinForms application which includes a form that uses a DataGridView to handle simple data manipulation. To ensure accurate entry while mitigating clutter (read: without using DataGridViewComboBoxColumn ) I have a couple event handlers which temporarily turn a DataGridViewTextBoxCell into an equivalent DataGridViewComboBoxCell connected to values known to be "clean" when editing events are raised (typically when an editable cell is clicked): private void OnCellEndEdit(object

问题 I have a dictionary item as below Dictionary<string, List<StrikePrice>> where public class StrikePrice { public string Strike { get; private set; } public string Price { get; private set; } public StrikePrice(string strike, string price) { Strike = strike; Price = price; } } and I wish to assign this dictionary to the DataGridView this.dataGridViewTest.DataSource = listSmiles; I understand that a dictionary can't be assigned to the the DataSource as this doesn't derive from the IList

问题 I have a dictionary item as below Dictionary<string, List<StrikePrice>> where public class StrikePrice { public string Strike { get; private set; } public string Price { get; private set; } public StrikePrice(string strike, string price) { Strike = strike; Price = price; } } and I wish to assign this dictionary to the DataGridView this.dataGridViewTest.DataSource = listSmiles; I understand that a dictionary can't be assigned to the the DataSource as this doesn't derive from the IList

问题 I am binding an observable collection (FoodList) to a BindingSource in my WinForm. This BindingSource is used by a datagrid on the form. I had assumed that when I added a new item to the collection it would raise an event and a new row would show up in my grid. This does not happen though. namespace Foods { public class FoodList : ObservableCollection<Food> { } } private void frmFoods_Load(object sender, EventArgs e) { try { foodSource = new Source("Foods.xml"); foodBindingSource.DataSource =

问题 I am binding an observable collection (FoodList) to a BindingSource in my WinForm. This BindingSource is used by a datagrid on the form. I had assumed that when I added a new item to the collection it would raise an event and a new row would show up in my grid. This does not happen though. namespace Foods { public class FoodList : ObservableCollection<Food> { } } private void frmFoods_Load(object sender, EventArgs e) { try { foodSource = new Source("Foods.xml"); foodBindingSource.DataSource =

问题 I am binding an observable collection (FoodList) to a BindingSource in my WinForm. This BindingSource is used by a datagrid on the form. I had assumed that when I added a new item to the collection it would raise an event and a new row would show up in my grid. This does not happen though. namespace Foods { public class FoodList : ObservableCollection<Food> { } } private void frmFoods_Load(object sender, EventArgs e) { try { foodSource = new Source("Foods.xml"); foodBindingSource.DataSource =

问题 I am binding an observable collection (FoodList) to a BindingSource in my WinForm. This BindingSource is used by a datagrid on the form. I had assumed that when I added a new item to the collection it would raise an event and a new row would show up in my grid. This does not happen though. namespace Foods { public class FoodList : ObservableCollection<Food> { } } private void frmFoods_Load(object sender, EventArgs e) { try { foodSource = new Source("Foods.xml"); foodBindingSource.DataSource =

问题 I am binding an observable collection (FoodList) to a BindingSource in my WinForm. This BindingSource is used by a datagrid on the form. I had assumed that when I added a new item to the collection it would raise an event and a new row would show up in my grid. This does not happen though. namespace Foods { public class FoodList : ObservableCollection<Food> { } } private void frmFoods_Load(object sender, EventArgs e) { try { foodSource = new Source("Foods.xml"); foodBindingSource.DataSource =

问题 On several recommendations, I started to assign a DataSource to my DataGridView instead of using DataGridView.Rows.Add(...) . This is convenient since my data source is already a big list which doesn't change (much). However, when I use the DataSource assignment, it becomes impossible to sort the columns. class MyGridView : DataGridView { private List<Person> m_personList; private class Person { public string FirstName { get; set; } public string LastName { get; set; } public Person(string

问题 On several recommendations, I started to assign a DataSource to my DataGridView instead of using DataGridView.Rows.Add(...) . This is convenient since my data source is already a big list which doesn't change (much). However, when I use the DataSource assignment, it becomes impossible to sort the columns. class MyGridView : DataGridView { private List<Person> m_personList; private class Person { public string FirstName { get; set; } public string LastName { get; set; } public Person(string