添加动态控件以自动滚动表单
当我将控件添加到表单时，一切都会正常，直到我尝试指定大于 int16.MaxValue 的位置。控件只是堆积在一起。这是经过简化但演示了行为的代码：
private void Form1_Load(object sender, EventArgs e)
{
this.AutoScroll = true;
int nexttop = 0;
for (int i = 0; i < 500; i++)
{
TextBox t = new TextBox();
t.Text = i.ToString();
t.Multiline = true;
if (nexttop > Int16.MaxValue)
{
bool debug = true;
}
t.Location = new Point(0, nexttop);
t.Size = new Size(100, 77);
nexttop += t.Height;
this.Controls.Add(t);
}
}
我想避免以编程方式移动滚动条，因为这会导致计时问题。
您对如何解决这个问题有什么想法吗？ TIA。
When I add my controls to the form, it goes fine until I try to specify a location larger than int16.MaxValue. The controls just pile up on top of each other. Here is code which is simplified but demonstrates the behavior:
private void Form1_Load(object sender, EventArgs e)
{
this.AutoScroll = true;
int nexttop = 0;
for (int i = 0; i < 500; i++)
{
TextBox t = new TextBox();
t.Text = i.ToString();
t.Multiline = true;
if (nexttop > Int16.MaxValue)
{
bool debug = true;
}
t.Location = new Point(0, nexttop);
t.Size = new Size(100, 77);
nexttop += t.Height;
this.Controls.Add(t);
}
}
I want to avoid moving the scroll bar programaticaly, since this causes timing issues.
Do you have any ideas on how to fix this? TIA.
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此限制 (32767) 是由 GDI+ 造成的。我相信根据 Windows 版本可能会观察到不同的行为。
This limit (32767) is due to GDI+. I believe different behaviours may be observed according to the Windows version.