我有一个具有黑白主题的winforms应用程序。我有一个树视图,其背景颜色设置为黑色,文本显示为白色。我已将hotTracking设置为true。现在按照以下MSDN链接: https://msdn.microsoft.com/en-us/library/system.windows.forms.treeview.hottracking.aspx
当
HotTracking
属性设置为true时,每个树节点标签 当鼠标指针经过时,它呈现出超链接的外观 超过它。下划线字体样式应用于Font和 ForeColor设置为蓝色,使标签显示为链接。该 外观不受用户的互联网设置控制 操作系统。
似乎前色被硬编码为蓝色。但这会在我的应用程序中产生问题,如附带的示例图像所示。由于这种蓝色,文本在黑色背景上变得不可读。虽然我可以禁用热跟踪,但客户需要它。有没有办法克服热追踪的前色。
以下是我用于将主题应用于树视图的示例代码:
this.trvUsers.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.trvUsers.FullRowSelect = true;
this.trvUsers.HideSelection = false;
this.trvUsers.HotTracking = true;
this.trvUsers.ShowLines = false;
this.treeView1.BackColor = System.Drawing.Color.Black;
this.treeView1.ForeColor = System.Drawing.Color.White;
答案 0 :(得分:2)
您应该处理TreeView的DrawNode事件。更多信息请访问:TreeView.DrawNode Event
private void Form1_Load(object sender, EventArgs e)
{
this.treeView1.Nodes.Add("Node1");
this.treeView1.Nodes.Add("Node2");
this.treeView1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.treeView1.FullRowSelect = true; this.treeView1.HideSelection = false;
this.treeView1.HotTracking = true;
this.treeView1.ShowLines = false;
this.treeView1.BackColor = System.Drawing.Color.Black;
this.treeView1.DrawMode = TreeViewDrawMode.OwnerDrawText;
this.treeView1.DrawNode += treeView1_DrawNode;
}
private void treeView1_DrawNode(object sender, DrawTreeNodeEventArgs e)
{
Font font = e.Node.NodeFont ?? e.Node.TreeView.Font;
Color foreColor = e.Node.ForeColor;
if (e.State == TreeNodeStates.Hot)
{
foreColor = Color.Red;
}
else
{
foreColor = Color.White;
}
TextRenderer.DrawText(e.Graphics, e.Node.Text, font, e.Bounds, foreColor, Color.Black, TextFormatFlags.GlyphOverhangPadding);
}