C# 选项卡控件与图片左水平对齐
C# tab control left horizontal alignment with picture
我已经按照 msdn 网站中的说明进行操作:
https://msdn.microsoft.com/en-us/library/vstudio/ms404305%28v=vs.100%29.aspx
显示标签控件如下图:
这是代码:
private void tcMain_DrawItem(Object sender, DrawItemEventArgs e)
{
Graphics g = e.Graphics;
Brush _textBrush;
TabPage _tabPage = tcMain.TabPages[e.Index];
Rectangle _tabBounds = tcMain.GetTabRect(e.Index);
if (e.State == DrawItemState.Selected)
{
_textBrush = new SolidBrush(Color.Red);
g.FillRectangle(Brushes.Gray, e.Bounds);
}
else
{
_textBrush = new System.Drawing.SolidBrush(e.ForeColor);
e.DrawBackground();
}
Font _tabFont = new Font("Times New Roman", (float)22, FontStyle.Regular, GraphicsUnit.Pixel);
StringFormat _stringFlags = new StringFormat();
_stringFlags.Alignment = StringAlignment.Near;
_stringFlags.LineAlignment = StringAlignment.Center;
g.DrawString(_tabPage.Text, _tabFont, _textBrush, _tabBounds, new StringFormat(_stringFlags));
}
现在我想在选项卡控件按钮的左侧添加图片?我的意思是,如何在 Book 一词的左侧显示图片?
在尝试了下面的一些答案后,我得到了代码:
private void tcMain_DrawItem(Object sender, DrawItemEventArgs e)
{
Graphics g = e.Graphics;
Brush _textBrush;
TabPage _tabPage = tcMain.TabPages[e.Index];
Rectangle _tabBounds = tcMain.GetTabRect(e.Index);
if (e.State == DrawItemState.Selected)
{
_textBrush = new SolidBrush(Color.Red);
g.FillRectangle(Brushes.Gray, e.Bounds);
}
else
{
_textBrush = new System.Drawing.SolidBrush(e.ForeColor);
e.DrawBackground();
}
tcMain.ImageList = imgList;
tcMain.TabPages[0].ImageIndex = 1;
tcMain.TabPages[1].ImageIndex = 0;
tcMain.TabPages[2].ImageIndex = 3;
tcMain.TabPages[3].ImageIndex = 2;
Rectangle tabImage = tcMain.GetTabRect(e.Index);
tabImage.Size = new Size(40, 40);
g.DrawImage(tcMain.ImageList.Images[_tabPage.ImageIndex], tabImage);
Font _tabFont = new Font("Times New Roman", (float)22, FontStyle.Regular, GraphicsUnit.Pixel);
StringFormat _stringFlags = new StringFormat();
_stringFlags.Alignment = StringAlignment.Center;
_stringFlags.LineAlignment = StringAlignment.Center;
g.DrawString(_tabPage.Text, _tabFont, _textBrush, _tabBounds, new StringFormat(_stringFlags));
}
然后当我对结果进行快照时,它是这样的:
一直在刷新
您可以将 ImageList
控件添加到您的项目并向其添加一些图像并设置 TabPages
的 ImageIndex
属性。然后在 DrawItem
事件中使用 DrawImage()
方法。
Rectangle tabImage = tcMain.GetTabRect(e.Index);
tabImage.Size = new Size(16, 16);
g.DrawImage(tcMain.ImageList.Images[_tabPage.ImageIndex], tabImage);
您也可以使用 ImageKey
而不是 ImageIndex
。
g.DrawImage(tcMain.ImageList.Images[_tabPage.ImageKey], tabImage);
如果您以编程方式添加 ImageList
和 ImageIndex
,请查看:
ImageList imageList = new ImageList();
imageList.Images.Add("key1", Image.FromFile("pathtofile"));
imageList.Images.Add("key2", Image.FromFile("pathtofile"));
tcMain.ImageList = imageList;
tcMain.TabPages[0].ImageIndex = 1;
tcMain.TabPages[1].ImageIndex = 0;
我已经按照 msdn 网站中的说明进行操作: https://msdn.microsoft.com/en-us/library/vstudio/ms404305%28v=vs.100%29.aspx 显示标签控件如下图:
这是代码:
private void tcMain_DrawItem(Object sender, DrawItemEventArgs e)
{
Graphics g = e.Graphics;
Brush _textBrush;
TabPage _tabPage = tcMain.TabPages[e.Index];
Rectangle _tabBounds = tcMain.GetTabRect(e.Index);
if (e.State == DrawItemState.Selected)
{
_textBrush = new SolidBrush(Color.Red);
g.FillRectangle(Brushes.Gray, e.Bounds);
}
else
{
_textBrush = new System.Drawing.SolidBrush(e.ForeColor);
e.DrawBackground();
}
Font _tabFont = new Font("Times New Roman", (float)22, FontStyle.Regular, GraphicsUnit.Pixel);
StringFormat _stringFlags = new StringFormat();
_stringFlags.Alignment = StringAlignment.Near;
_stringFlags.LineAlignment = StringAlignment.Center;
g.DrawString(_tabPage.Text, _tabFont, _textBrush, _tabBounds, new StringFormat(_stringFlags));
}
现在我想在选项卡控件按钮的左侧添加图片?我的意思是,如何在 Book 一词的左侧显示图片?
在尝试了下面的一些答案后,我得到了代码:
private void tcMain_DrawItem(Object sender, DrawItemEventArgs e)
{
Graphics g = e.Graphics;
Brush _textBrush;
TabPage _tabPage = tcMain.TabPages[e.Index];
Rectangle _tabBounds = tcMain.GetTabRect(e.Index);
if (e.State == DrawItemState.Selected)
{
_textBrush = new SolidBrush(Color.Red);
g.FillRectangle(Brushes.Gray, e.Bounds);
}
else
{
_textBrush = new System.Drawing.SolidBrush(e.ForeColor);
e.DrawBackground();
}
tcMain.ImageList = imgList;
tcMain.TabPages[0].ImageIndex = 1;
tcMain.TabPages[1].ImageIndex = 0;
tcMain.TabPages[2].ImageIndex = 3;
tcMain.TabPages[3].ImageIndex = 2;
Rectangle tabImage = tcMain.GetTabRect(e.Index);
tabImage.Size = new Size(40, 40);
g.DrawImage(tcMain.ImageList.Images[_tabPage.ImageIndex], tabImage);
Font _tabFont = new Font("Times New Roman", (float)22, FontStyle.Regular, GraphicsUnit.Pixel);
StringFormat _stringFlags = new StringFormat();
_stringFlags.Alignment = StringAlignment.Center;
_stringFlags.LineAlignment = StringAlignment.Center;
g.DrawString(_tabPage.Text, _tabFont, _textBrush, _tabBounds, new StringFormat(_stringFlags));
}
然后当我对结果进行快照时,它是这样的:
一直在刷新
您可以将 ImageList
控件添加到您的项目并向其添加一些图像并设置 TabPages
的 ImageIndex
属性。然后在 DrawItem
事件中使用 DrawImage()
方法。
Rectangle tabImage = tcMain.GetTabRect(e.Index);
tabImage.Size = new Size(16, 16);
g.DrawImage(tcMain.ImageList.Images[_tabPage.ImageIndex], tabImage);
您也可以使用 ImageKey
而不是 ImageIndex
。
g.DrawImage(tcMain.ImageList.Images[_tabPage.ImageKey], tabImage);
如果您以编程方式添加 ImageList
和 ImageIndex
,请查看:
ImageList imageList = new ImageList();
imageList.Images.Add("key1", Image.FromFile("pathtofile"));
imageList.Images.Add("key2", Image.FromFile("pathtofile"));
tcMain.ImageList = imageList;
tcMain.TabPages[0].ImageIndex = 1;
tcMain.TabPages[1].ImageIndex = 0;