DataGridView单元格对齐将无法正常工作 [英] DataGridView Cell Alignment Won't Work

问题描述

我有一个我在C＃Winforms项目中使用的DataGridView。网格不会自动生成列。我已经手动设置列名和属性。

这包括单元格的DefaultCellStyle。我想要所有类型为DataGridViewCheckBoxColumn的单元格对齐中心。我已经在设计器中为此类型的每一列手动设置了此对齐方式。加载datagridview时，这些更改不会显示。

作为我的下一个方法，我使用下面的代码在DataBindingComplete事件（也没有影响） p>

  foreach（this.dgv_Automations.Columns中的DataGridViewColumn dgvc）
 {
 if（dgvc.CellType == typeof （DataGridViewCheckBoxCell））
 dgvc.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter; 
} 
  

调试时，上述代码已将对齐方式设置为中心。但是，它仍然没有显示在网格上。

我可以使其工作，如果在DataBindingComplete事件期间我做这样的事情：

  foreach（this.dgv_Automations.Rows中的DataGridViewRow dgvr）
 {
 dgvr.Cells [isErrors ] .Style.Alignment = DataGridViewContentAlignment.MiddleCenter; 
} 
  

但是，我有很多列，真的没有意义这样做。编辑：我已经实现了这个方式，只有大约10行，在每个单元格上设置这个属性是非常显着的滞后。

我的问题是：什么是正确的这样做的方式？为什么设计师DefaultCellStyle不起作用？

解决方案

根据 MSDN <$ c $ DefaultCellStyle $ c> DataGridViewColumn 被通过 DataGridView.RowsDefaultCellStyle ， DataGridView.AlternatingRowsDefaultCellStyle ， DataGridViewRow.DefaultCellStyle 和 DataGridViewCell.Style 属性。

所以可能这些样式之一设置为与您所需的对齐方式不兼容的值（例如 DataGridViewContentAlignment.NotSet 或 DataGridViewContentAlignment.TopLeft ）

I have a DataGridView that I use in a C# Winforms project. The grid does NOT autogenerate columns. I have manually set the column names and properties.

This includes the DefaultCellStyle for the cells. I want all cells that are of type DataGridViewCheckBoxColumn to be aligned centered. I have manually set this alignment for each column of this type in the designer. These changes do not show up when the datagridview is loaded.

As my next approach, I used the code below in the DataBindingComplete event (which also had no effect)

foreach (DataGridViewColumn dgvc in this.dgv_Automations.Columns)
{
    if(dgvc.CellType == typeof(DataGridViewCheckBoxCell))
        dgvc.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
}

When debugging, the above code already had the alignment set the center. However, it still does not show up on the grid.

I CAN get it working if during the DataBindingComplete event I do something like this:

foreach (DataGridViewRow dgvr in this.dgv_Automations.Rows)
{
    dgvr.Cells["isErrors"].Style.Alignment = DataGridViewContentAlignment.MiddleCenter;
}

However, I have many of these columns and it really doesn't make sense to do it this way. EDIT: I have implemented it this way and with only about 10 rows there is very noticeable lag from setting this property on each cell.

My question is: what is the proper way of doing this? Why does the designer DefaultCellStyle not work?

解决方案

According to MSDN the DefaultCellStyle of a DataGridViewColumn is overridden by the styles specified through the DataGridView.RowsDefaultCellStyle, DataGridView.AlternatingRowsDefaultCellStyle, DataGridViewRow.DefaultCellStyle, and DataGridViewCell.Style properties.
So it's possibile that one of these styles are set to a value incompatible with your required alignment (for example DataGridViewContentAlignment.NotSet or DataGridViewContentAlignment.TopLeft)

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