DataGridViewCheckBoxColumn：如何在属性更新绑定的数据源，而不是改变了验证 [英] DataGridViewCheckBoxColumn: how to update bound DataSource on property changed instead of on validation

问题描述

我有绑定一个DataGridView的数据源的BindingList;所述TSource属性之一被绑定到一个DataGridViewCheckBoxColumn，但是当该复选框点击出现在数据源不被更新，但是当焦点上的复选框本身就会丢失。

我知道类似的事情发生在一个标准WindowsForms时DataSourceUpdateMode是OnValidation而不是OnPropertyChanged约束力，但我怎么能有一个DataGridViewCheckBoxColumn相同的结果？

列定义如下：

  DataGridViewCheckBoxColumn列=新DataGridViewCheckBoxColumn（）;
            column.DataPropertyName =myProperty的;
            column.HeaderText =标题;            dataGridView.Columns.Add（列）;
 

解决方案

您可以通过处理 DataGridView的 CurrentCellDirtyStateChanged 事件。

 无效dataGridView1_CurrentCellDirtyStateChanged（对象发件人，EventArgs的发送）
{
    如果（dataGridView1.IsCurrentCellDirty）
    {
        dataGridView1.CommitEdit（DataGridViewDataErrorContexts.Commit）;
    }
}
 

I've got a BindingList binded as the data source of a DataGridView; one of the TSource properties is binded to a DataGridViewCheckBoxColumn, but the data source is updated not when a click on the checkbox occurs, but when the focus on the checkbox itself is lost.

I know that something similar happens on a standard WindowsForms binding when the DataSourceUpdateMode is "OnValidation" instead of "OnPropertyChanged", but how can I have the same results with a DataGridViewCheckBoxColumn?

The column is defined as follows:

            DataGridViewCheckBoxColumn column = new DataGridViewCheckBoxColumn();
            column.DataPropertyName = "MyProperty";
            column.HeaderText = "Title";

            dataGridView.Columns.Add(column);

解决方案

You can do this by handling the CurrentCellDirtyStateChanged event of the DataGridView.

void dataGridView1_CurrentCellDirtyStateChanged(object sender,EventArgs e)
{
    if (dataGridView1.IsCurrentCellDirty)
    {
        dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
    }
}

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