如何仅在加载数据时显示表单？

I need some help on a thing that I can't resolve.

我需要一些无法解决的问题的帮助。

I've a Windows Form with a DataGridView who is populated with a large amount of data. This data is stored in a SQL Server Database and retrieved by a simple piece of ADO.NET code.

我有一个带有DataGridView的Windows窗体，其中填充了大量数据。此数据存储在SQL Server数据库中，并由一段简单的ADO.NET代码检索。

I'm already using the BackGroundWorker class to perform this kind of operation but the form still freezes for 1-2 second.

我已经使用BackGroundWorker类来执行这种操作，但表单仍然会冻结1-2秒。

Is there a way to delay the showing of the form? Like a show form only when all data in loaded? I've tried to make it not visible or to use Hide() and Show() method but still not have any results.

有没有办法延迟表格的显示？只有在加载所有数据时才显示表单？我试图让它不可见或使用Hide（）和Show（）方法，但仍然没有任何结果。

2 个解决方案

#1

Remove InitializeComponent(); from constructor of your form and call this method when data has loaded

删除InitializeComponent（）;从表单的构造函数，并在数据加载时调用此方法

#2

I've found a easy work-around. Change the modifiers of the BackGroundWorker to public. Create the instance of the form, run Form.CreateControl() and call the BackGroundWorker.RunWorkerAsync() method. In the DoWork event I put: data retrieving and population of the controls (DataGridView, combobox and textbox). In the RunWorkerCompleted just the Form.Show() method. That's all. Is this a nice solution?

我找到了一个简单的解决方法。将BackGroundWorker的修饰符更改为public。创建表单的实例，运行Form.CreateControl（）并调用BackGroundWorker.RunWorkerAsync（）方法。在DoWork事件中我提出：数据检索和控件的填充（DataGridView，组合框和文本框）。在RunWorkerCompleted中只是Form.Show（）方法。就这样。这是一个很好的解决方案？