动态BindingSource如何 [英] Dynamic BindingSource how to

问题描述

大家好，

我想用两个组合框设置动态bindingSource，当我添加这一行时：

I want to set dynamic bindingSource with two comboboxes , when i add this line:

   ;

  

_toComboBox.DataBindings.Add("SelectedValue", tb_DosetsBindingSource, "_to"); 

它会引发异常，所以如何成功设置动态绑定

it raises an exception , so how can i set dynamic binding succefully

谢谢

Thanks

Esmat

推荐答案

Esmat，带有组合框你不能使用DataBinding（这是一个项目），但因为它似乎你使用Windows窗体

Esmat, with a combobox you must not use DataBinding (that is for one item) but as it seems you use windows forms

DataSource和displaymember以及如果需要的值成员

DataSource and displaymember and if needed valuemember

comboBox1.DataSource = YourSource
comboBox1.DisplayMember = "TheNameOfThePropertyInTheSource";
comboBox1.ValueMember = "TheNameOfThePropertyTheSource";

请注意，按照惯例，对于C＃下划线是属于属性的项目。

Be aware that for C# by convention the underscore is for items which are base of a property.

 如果是关于WPF而不是自己查找Itemsource（其余几乎相同）

 If it is about WPF than look for Itemsource yourself (the rest is almost the same)

如果是数据网格视图，您还需要DataPropertyName

If it is for a datagridview you also need the DataPropertyName

这篇关于动态BindingSource如何的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！