我有一个用户控件,其中DateTimePicker叠加了单行文本框(Tb)
覆盖DateTimePicker的文本部分。文本框Tb(绿色)被锚定(L T R B)。
调整用户控件的大小时会出现问题 重叠的datetimepicker显示在文本Tb后面。
目前,用户控制是242(W)x 20(H)。 当控件调整到100(宽度)以下时会出现问题。
我尝试将CustomFormat设置为“”的文本留空,但用户控件支持许多datetimepicker功能,因此这不是一个选项。
我尝试在用户控件上设置最小大小,但这也不起作用。
修改
该控件已在少数应用程序中使用。在这些应用程序中最小
对照的大小是90X20,而我们现在设定的最小尺寸是97x20
VS设计师在进行更改后会将现有控件的大小调整为97x20吗?
如何实现这种效果(重新调整为97x20)?
修改 ****代码
namespace WindowsFormsApplication1
{
partial class CDatePicker
{
private System.ComponentModel.IContainer components = null;
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Component Designer generated code
private void InitializeComponent()
{
this.splitContainer1 = new System.Windows.Forms.SplitContainer();
this.datepanel = new System.Windows.Forms.Panel();
this.datetxt = new System.Windows.Forms.TextBox();
this.dateTimePicker1 = new System.Windows.Forms.DateTimePicker();
this.timepanel = new System.Windows.Forms.Panel();
this.timetxt = new System.Windows.Forms.TextBox();
((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).BeginInit();
this.splitContainer1.Panel1.SuspendLayout();
this.splitContainer1.Panel2.SuspendLayout();
this.splitContainer1.SuspendLayout();
this.datepanel.SuspendLayout();
this.timepanel.SuspendLayout();
this.SuspendLayout();
//
// splitContainer1
//
this.splitContainer1.Dock = System.Windows.Forms.DockStyle.Fill;
this.splitContainer1.Location = new System.Drawing.Point(0, 0);
this.splitContainer1.Name = "splitContainer1";
//
// splitContainer1.Panel1
//
this.splitContainer1.Panel1.Controls.Add(this.datepanel);
this.splitContainer1.Panel1MinSize = 105;
//
// splitContainer1.Panel2
//
this.splitContainer1.Panel2.Controls.Add(this.timepanel);
this.splitContainer1.Size = new System.Drawing.Size(236, 20);
this.splitContainer1.SplitterDistance = 178;
this.splitContainer1.SplitterWidth = 1;
this.splitContainer1.TabIndex = 0;
//
// datepanel
//
this.datepanel.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.datepanel.Controls.Add(this.datetxt);
this.datepanel.Controls.Add(this.dateTimePicker1);
this.datepanel.Location = new System.Drawing.Point(0, 0);
this.datepanel.Margin = new System.Windows.Forms.Padding(0);
this.datepanel.Name = "datepanel";
this.datepanel.Size = new System.Drawing.Size(175, 20);
this.datepanel.TabIndex = 0;
//
// datetxt
//
this.datetxt.BackColor = System.Drawing.Color.Gainsboro;
this.datetxt.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.datetxt.Location = new System.Drawing.Point(0, 0);
this.datetxt.MinimumSize = new System.Drawing.Size(60, 20);
this.datetxt.Name = "datetxt";
this.datetxt.Size = new System.Drawing.Size(71, 20);
this.datetxt.TabIndex = 3;
this.datetxt.Text = "date";
//
// dateTimePicker1
//
this.dateTimePicker1.Dock = System.Windows.Forms.DockStyle.Fill;
this.dateTimePicker1.Format = System.Windows.Forms.DateTimePickerFormat.Short;
this.dateTimePicker1.Location = new System.Drawing.Point(0, 0);
this.dateTimePicker1.Margin = new System.Windows.Forms.Padding(0);
this.dateTimePicker1.MinimumSize = new System.Drawing.Size(65, 20);
this.dateTimePicker1.Name = "dateTimePicker1";
this.dateTimePicker1.Size = new System.Drawing.Size(175, 20);
this.dateTimePicker1.TabIndex = 2;
this.dateTimePicker1.Value = new System.DateTime(2012, 11, 15, 0, 0, 0, 0);
//
// timepanel
//
this.timepanel.Controls.Add(this.timetxt);
this.timepanel.Dock = System.Windows.Forms.DockStyle.Fill;
this.timepanel.Location = new System.Drawing.Point(0, 0);
this.timepanel.Margin = new System.Windows.Forms.Padding(0);
this.timepanel.Name = "timepanel";
this.timepanel.Size = new System.Drawing.Size(57, 20);
this.timepanel.TabIndex = 0;
//
// timetxt
//
this.timetxt.Dock = System.Windows.Forms.DockStyle.Fill;
this.timetxt.Location = new System.Drawing.Point(0, 0);
this.timetxt.Name = "timetxt";
this.timetxt.Size = new System.Drawing.Size(57, 20);
this.timetxt.TabIndex = 1;
this.timetxt.Text = "time";
this.timetxt.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;
//
// CDatePicker
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.AutoSize = true;
this.Controls.Add(this.splitContainer1);
this.MaximumSize = new System.Drawing.Size(236, 20);
this.MinimumSize = new System.Drawing.Size(100, 20);
this.Name = "CDatePicker";
this.Size = new System.Drawing.Size(236, 20);
this.splitContainer1.Panel1.ResumeLayout(false);
this.splitContainer1.Panel2.ResumeLayout(false);
((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).EndInit();
this.splitContainer1.ResumeLayout(false);
this.datepanel.ResumeLayout(false);
this.datepanel.PerformLayout();
this.timepanel.ResumeLayout(false);
this.timepanel.PerformLayout();
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.SplitContainer splitContainer1;
private System.Windows.Forms.Panel datepanel;
private System.Windows.Forms.TextBox datetxt;
private System.Windows.Forms.DateTimePicker dateTimePicker1;
private System.Windows.Forms.Panel timepanel;
private System.Windows.Forms.TextBox timetxt;
}
}
编辑:添加最小尺寸后,它看起来更好,但日历下拉消失了
当控件调整为min并重建项目时..
此外,文本框不会保留在日历按钮附近..
编辑:上面添加了pic ..日历消失了。
编辑:哦,我错过了另一件事,日期字段和时间字段都是可折叠的。为什么拆分容器在那里。最小尺寸计算也必须注意这一点。(我猜两种不同的最小尺寸取决于时间场的可见性。)
问题:
a)如何防止用户控件调整超出一定的最小限制以避免上述问题? (pic1似乎是想法大小)
b)我可以绘制datetimepicker,使文本消隐,我们只看到了 日历下拉按钮?如果是这样,我还需要处理调整大小事件吗?
c)如何继续调整文本框的大小,使其始终覆盖DTP的日期文本部分。
答案 0 :(得分:3)
你有一个简单的问题和一个难题。从截图中可以看出这个简单的问题。 DateTimePicker没有正确调整大小,请注意下拉按钮在右侧是如何被剪裁的。 UserControl太奇怪了,无法确定问题,但我认为是datePanel。您正在使用Anchor.Right而不是Dock.Fill。
难题是下拉按钮会根据可用于呈现DTP内容的空间量动态调整自身大小。至少在Windows 7上,早期版本使用不同的渲染策略。遗憾的是,VisualStyles api不会返回按钮的实际大小。处理它的唯一方法是确保文本框足够大以覆盖图标,因此只有下拉箭头可见。
我对UserControl做不了多少,我将提出一个更简单的解决方案,它只是从DateTimePicker类派生出来并在其中嵌入一个TextBox。运行时 lot 也更便宜:
using System;
using System.Drawing;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;
using System.Runtime.InteropServices;
class MyDateTimePicker : DateTimePicker {
private TextBox editbox;
private int buttonWidth;
public MyDateTimePicker() {
editbox = new TextBox();
editbox.BorderStyle = BorderStyle.None;
editbox.BackColor = Color.Gold; // debugging
this.Controls.Add(editbox);
}
public override Font Font {
get { return base.Font; }
set { base.Font = editbox.Font = value; }
}
protected override void OnResize(EventArgs e) {
if (buttonWidth == 0) measureButtonWidth();
var margin = (this.ClientSize.Height - editbox.PreferredHeight) / 2;
editbox.Location = new Point(margin, margin);
editbox.Width = this.ClientSize.Width - margin - buttonWidth;
base.OnResize(e);
}
private void measureButtonWidth() {
if (!Application.RenderWithVisualStyles) buttonWidth = 21; // TODO: measure
else {
var renderer = new VisualStyleRenderer("DATEPICKER", 3, 1);
using (var gr = CreateGraphics()) {
buttonWidth = renderer.GetPartSize(gr, ThemeSizeType.True).Height;
}
}
}
protected override void Dispose(bool disposing) {
if (disposing) editbox.Dispose();
base.Dispose(disposing);
}
}
OnResize覆盖负责保持TextBox的大小合适。添加您处理editbox.Text属性的任何代码。唯一没有注意的细节是禁用视觉样式时下拉按钮的大小。这些天不常见但仍然可能。关闭机器上的主题并调整硬编码大小以使其与外观相匹配。
答案 1 :(得分:0)
我认为你不会通过将DateTimePicker与文本框重叠来获得好结果。总会有调整大小和焦点问题。
我会使用以下选项之一:
从代码项目等地方使用或自定义类似的下拉容器控件。至少有两个你可以用作灵感:
您甚至可以调整代码项目中colour picker的下拉部分
最终选项可以提供更大的灵活性,从Windows窗体转移到WPF。像这样创建自定义控件非常容易(无论如何,在陡峭的学习曲线之后)。