DataGridView屏蔽TextBox列 [英] DataGridView Masked TextBox Column
问题描述
我的问题是，一旦列有我需要的所有数据，按enter或tab不会创建一个新行，即使是我有datagridview1.AllowUserToAddRows = true。
然后我发现问题是在我链接的库，因为当我添加一个简单的datagrid文本框，按enter或tab确实创建一个新行。
所以我添加了这个例程，希望在最后一行的最后一列创建一个新行：
private void dgOre_CellEndEdit（object sender，DataGridViewCellEventArgs e）
{
if（e.RowIndex == dgOre.Rows.Count-1&& e.ColumnIndex == dgOre.Columns.Count - 1）{
dgOre.Rows.Add（）;
}
}
这个例程的问题是它增加了行，但它在最后一行之前创建它，创建一个空白，就好像我在一些其他事件启动之前创建一行。我应该改变maskedtextbox库中的某些东西，或使用不同的事件，但我不知道如何和什么编辑。
这是编辑控件的源代码：
public class DataGridViewMaskedTextEditingControl：MaskedTextBox，
IDataGridViewEditingControl
{
#region Fields
私有DataGridView dataGridView;
private bool valueChanged;
private int rowIndex;
#endregion
#region构造函数
public DataGridViewMaskedTextEditingControl（）
{
Mask = String.Empty;
}
#endregion
#region接口的属性
public DataGridView EditingControlDataGridView
{
get {return dataGridView; }
set {dataGridView = value;
}
public object EditingControlFormattedValue
{
get {return Text; }
set
{
if（value is string）
Text =（string）value;
}
}
public int EditingControlRowIndex
{
get {return rowIndex; }
set {rowIndex = value;
}
public bool EditingControlValueChanged
{
get {return valueChanged; }
set {valueChanged = value; }
}
public Cursor EditingPanelCursor
{
get {return base.Cursor; }
}
public bool RepositionEditingControlOnValueChange
{
get {return false;
}
#endregion
#region接口的方法
public void ApplyCellStyleToEditingControl（
DataGridViewCellStyle dataGridViewCellStyle）
{
Font = dataGridViewCellStyle.Font;
//获取当前单元格使用特定的掩码字符串
DataGridViewMaskedTextCell单元格
= dataGridView.CurrentCell作为DataGridViewMaskedTextCell;
if（cell！= null）
{
Mask = cell.Mask;
}
}
public bool EditingControlWantsInputKey（Keys key，bool dataGridViewWantsInputKey）
{
//注意：在DataGridView中，可以更喜欢使用
//上/下键。
switch（key& Keys.KeyCode）
{
case Keys.Left：
case Keys.Right：
case Keys.Home：
case Keys.End：
返回true;
默认值：
返回false;
}
}
public object GetEditingControlFormattedValue（DataGridViewDataErrorContexts context）
{
return EditingControlFormattedValue;
}
public void PrepareEditingControlForEdit（bool selectAll）
{
if（selectAll）
SelectAll（）;
else
{
SelectionStart = 0;
SelectionLength = 0;
}
}
#endregion
#region MaskedTextBox事件
protected override void OnTextChanged（System.EventArgs e）
{
base.OnTextChanged （e）;
EditingControlValueChanged = true;
if（EditingControlDataGridView！= null）
{
EditingControlDataGridView.CurrentCell.Value = Text;
}
}
#endregion
}
当您的编辑控件进行更改时，您应该使用 NotifyCurrentCellDirty（true） 。所以你可以在编辑控件中编写这样的代码：
protected override void OnTextChanged（EventArgs e）
{
base.OnTextChanged（e）;
EditingControlValueChanged = true;
EditingControlDataGridView.NotifyCurrentCellDirty（true）;
}
I have a DataGridView with 2 columns,and i wanted to create some kind of input mask to it. So i found a small class that inherits maskedtextbox control and lets you use it in a datagridview. Everything works fine,the mask works as intended, no big deal. heres the library: http://www.codeproject.com/Articles/26005/DataGridViewColumn-Hosting-MaskedTextBox
My problem is,once the row has all the data i need,pressing enter or tab does not create a new row, even tho i have datagridview1.AllowUserToAddRows = true. Then i found out the problem was in the library i linked,because when i add a simple datagrid textbox,pressing enter or tab does create a new row.
so i added this routine,to hopefully create a new row when i am on the last column of the last row:
private void dgOre_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
if(e.RowIndex== dgOre.Rows.Count-1 && e.ColumnIndex== dgOre.Columns.Count - 1){
dgOre.Rows.Add();
}
}
the problem with this routine is that it does add a row,but it creates it BEFORE the last row,creating a gap,as if i am creating a row before some other event is launched. I should change something in the maskedtextbox library, or use a different event,but i have no idea how and what to edit.
Here is the source code of editing control:
public class DataGridViewMaskedTextEditingControl : MaskedTextBox,
IDataGridViewEditingControl
{
#region Fields
private DataGridView dataGridView;
private bool valueChanged;
private int rowIndex;
#endregion
#region Constructor
public DataGridViewMaskedTextEditingControl()
{
Mask = String.Empty;
}
#endregion
#region Interface's properties
public DataGridView EditingControlDataGridView
{
get { return dataGridView; }
set { dataGridView = value; }
}
public object EditingControlFormattedValue
{
get { return Text; }
set
{
if (value is string)
Text = (string)value;
}
}
public int EditingControlRowIndex
{
get { return rowIndex; }
set { rowIndex = value; }
}
public bool EditingControlValueChanged
{
get { return valueChanged; }
set { valueChanged = value; }
}
public Cursor EditingPanelCursor
{
get { return base.Cursor; }
}
public bool RepositionEditingControlOnValueChange
{
get { return false; }
}
#endregion
#region Interface's methods
public void ApplyCellStyleToEditingControl(
DataGridViewCellStyle dataGridViewCellStyle)
{
Font = dataGridViewCellStyle.Font;
// get the current cell to use the specific mask string
DataGridViewMaskedTextCell cell
= dataGridView.CurrentCell as DataGridViewMaskedTextCell;
if (cell != null)
{
Mask = cell.Mask;
}
}
public bool EditingControlWantsInputKey(Keys key, bool dataGridViewWantsInputKey)
{
// Note: In a DataGridView, one could prefer to change the row using
// the up/down keys.
switch (key & Keys.KeyCode)
{
case Keys.Left:
case Keys.Right:
case Keys.Home:
case Keys.End:
return true;
default:
return false;
}
}
public object GetEditingControlFormattedValue(DataGridViewDataErrorContexts context)
{
return EditingControlFormattedValue;
}
public void PrepareEditingControlForEdit(bool selectAll)
{
if (selectAll)
SelectAll();
else
{
SelectionStart = 0;
SelectionLength = 0;
}
}
#endregion
#region MaskedTextBox event
protected override void OnTextChanged(System.EventArgs e)
{
base.OnTextChanged(e);
EditingControlValueChanged = true;
if (EditingControlDataGridView != null)
{
EditingControlDataGridView.CurrentCell.Value = Text;
}
}
#endregion
}
When a change is made in your editing control, you should notify the grid of changes using NotifyCurrentCellDirty(true) of the grid. So you can write such code in your editing control:
protected override void OnTextChanged(EventArgs e)
{
base.OnTextChanged(e);
EditingControlValueChanged = true;
EditingControlDataGridView.NotifyCurrentCellDirty(true);
}
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