DataGridView - DataTable - 显示属性 [英] DataGridView - DataTable - displaying properties
问题描述
（.NET 2.0，System.Windows.FormsDataGridView和DataTable）
( .NET 2.0, System.Windows.FormsDataGridView and DataTable )
我有1个datagrid连接到1个datatable。
I have 1 datagrid connected to 1 datatable.
该datatable包含1列：包含我自己的类型MyObject的对象。
MyObject有一个 public 字符串属性MyProp。
That datatable contains 1 column: containing objects of my own type "MyObject".
MyObject has a public string property "MyProp".
我想在网格中显示1列：显示表中MyObjects属性MyProp的字符串值。
I want to display 1 column in the grid: showing the string values of the property MyProp of the MyObjects in the table.
但是我似乎无法让它工作。
But I can't seem to get it to work.
原理图：
- myTable.Column1.Name：Obj
- myDataSet包含1个表：myTable（填充几行）
- myBindingSource.datasource = myDataSet myDataGridView中的myBindingSource.DataMember = myTable
- myDataGridView.DataSource = myBindingSource
-
DataGridViewTextBoxColumn
- myTable.Column1.Name: "Obj"
- myDataSet contains 1 table: myTable (filled with a few rows)
- myBindingSource.datasource = myDataSet
- myBindingSource.DataMember = myTable
- myDataGridView.DataSource = myBindingSource
in myDataGridView: 1 DataGridViewTextBoxColumn
试用1：
.DataPropertyName =Obj（默认生成）
Column.DataPropertyName="Obj" (generated by default)
显示（覆盖）MyObject.ToString（）
的结果不是真的我想要的，这个函数用于记录。
Displays the result of (overridden) MyObject.ToString() Not really what I want, this function is in use for logging.
- tryout 2：
GridViewColumn.DataPropertyName =Obj.MyProp
GridViewColumn.DataPropertyName="Obj.MyProp"
不显示任何内容（MyProp的获得从未被调用）
Doesn't display anything (MyProp's get is never called)
-
试用3：
使MyProp属性可绑定：
tryout 3: Made the MyProp property bindable:
[Bindable (BindableSupport.Yes)]
public string MyProp
{ ...
Samesame，与试用版没有不同2
Samesame, not different from tryout 2
简而言之：
GridViewColumn.DataPropertyName似乎不支持进一步向下钻取到datatable列中的对象。
GridViewColumn.DataPropertyName doesn't seem to support drilling further down into objects in a datatable's column.
有任何想法吗？
提前感谢
Jan
推荐答案
尝试将Obj.MyProp字符串值放入数据表排。将一个对象放在那里将需要将它转换成一个字符串表示（Obj.ToString（）），它可以让你看到你的输出。
Try just putting the Obj.MyProp string value into the datatable row. Putting an object into there will require it to be converted into a string representation (Obj.ToString()) which is getting you the output you are seeing.
数据表与电子表格非常相似，不像Array（Of objects）。你必须这样对待它。
A datatable is much like a spreadsheet, not like an Array(Of objects). You have to treat it as such,.
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