C# 如何设置datagridview列的最大长度
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How to set max length of datagridview column
提问by Jim Lahman
I have a DataGridViewwhere the units can be entered in a TextBoxcolumn.
我有一个DataGridView可以在TextBox列中输入单位的地方。
How do I restrict the input lengthof this column to 6characters?
如何将此列的输入长度限制为6字符？
采纳答案by Jay Riggs
Use the MaxInputLengthproperty of the DataGridViewTextBoxColumn.
使用 的MaxInputLength属性DataGridViewTextBoxColumn。
This property is available through the Designer or through code:
此属性可通过设计器或通过代码获得：
((DataGridViewTextBoxColumn)dataGridView1.Columns[yourColumn]).MaxInputLength = 6;
回答by Andrii Kalytiiuk
Please use CellValueChangedevent of DataGridView.
请使用DataGridView 的CellValueChanged事件。
In the handler of the event you can check ColumnIndexand RowIndexproperties of DataGridViewCellEventArgsargument to identify that grid's field of interest is edited and then - take appropriate actions.
在事件的处理程序中，您可以检查DataGridViewCellEventArgs参数的ColumnIndex和RowIndex属性，以确定该网格的感兴趣的字段已被编辑，然后 - 采取适当的操作。
As stated in other answers - most natural way to restrict text lengths for DataGridViewfield is to modify respective grid column properties. Properties of grid columns can be altered on Edit Columnsform that is invoked for grid control in form designerwith right click menu item Edit Columns...:
如其他答案所述 - 限制DataGridView字段文本长度的最自然方法是修改相应的网格列属性。网格列的属性可以在Edit Columns表单上更改，该表单在表单设计器中使用右键单击菜单项Edit Columns...为网格控件调用：
回答by sgud
You may have to play with cell-edit events. http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.cellvaluechanged.aspx
您可能需要处理单元格编辑事件。 http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.cellvaluechanged.aspx
