运行环境Visual Studio 2022 c# cad2016
一、模态窗体调用方式:
当一个模态窗体打开时,它会阻塞主窗体的所有输入,直到关闭该模态窗体为止。例如,弹出一个对话框让用户必须完成某些操作后才能继续使用主程序。
[CommandMethod("Caidan")]
public void Caidan()
{ShowModalLayerSelectionForm();//模态窗体}
//模态窗体private void ShowModalLayerSelectionForm(){using (var layerForm = new Form1()){DialogResult result = layerForm.ShowDialog(); // 使用ShowDialog()方法打开模态窗体if (result == DialogResult.OK || result == DialogResult.Yes) // 根据需要处理结果{// 处理用户选择图层的操作...}}}
二、非模态窗体调用方式:
非模态窗体打开时,用户可以同时与主窗体和其他非模态窗体进行交互。通常用作工具栏、辅助信息显示窗口等。
[CommandMethod("Caidan")]
public void Caidan()
{Form1 选择图层 = new Form1(); //非模态窗体选择图层.Show();
}
三、窗体程序
this.MaximizeBox = false;this.MinimizeBox = false;// 初始化DataGridViewDataGridView dataGridView = new DataGridView();// 创建一个新的DataGridView控件实例dataGridView.AllowUserToAddRows = false;// 禁止用户通过DataGridView界面直接添加新行dataGridView.AllowUserToDeleteRows = false;// 禁止用户通过DataGridView界面删除现有行dataGridView.BackgroundColor = Color.White;// 设置DataGridView的背景颜色为白色dataGridView.CellBorderStyle = DataGridViewCellBorderStyle.Single;// 设置单元格边框样式为单线边框dataGridView.DefaultCellStyle.SelectionBackColor = Color.LightBlue;// 设置选中单元格时的背景色为浅蓝色dataGridView.DefaultCellStyle.SelectionForeColor = Color.Black;// 设置选中单元格时的前景色(文本颜色)为黑色// 添加图层名称列DataGridViewTextBoxColumn layerNameColumn = new DataGridViewTextBoxColumn();layerNameColumn.HeaderText = "图层名称";layerNameColumn.ReadOnly = true;dataGridView.Columns.Add(layerNameColumn);// 假设GetLayerList返回CAD图层的名称列表//List<string> layerNames = GetLayerList();foreach (LayerTableRecord layer in GetLayerList()){dataGridView.Rows.Add(layer.Name);}// 添加DataGridView到窗体this.Controls.Add(dataGridView);dataGridView.Dock = DockStyle.Fill;dataGridView.CellDoubleClick += DataGridView_CellDoubleClick;
}private void DataGridView_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{if (sender is DataGridView dgv && e.RowIndex >= 0) // 检查是否在有效的行上双击{string selectedLayerName = dgv.Rows[e.RowIndex].Cells[0].Value.ToString(); // 获取选中的图层名称// 处理双击选定图层的逻辑MessageBox.Show($"双击了图层:{selectedLayerName}");// 根据需求执行其他操作...}
}private IEnumerable<LayerTableRecord> GetLayerList()
{List<LayerTableRecord> layers = new List<LayerTableRecord>();using (Transaction tr = HostApplicationServices.WorkingDatabase.TransactionManager.StartTransaction()){LayerTable layerTable = (LayerTable)tr.GetObject(HostApplicationServices.WorkingDatabase.LayerTableId, OpenMode.ForRead);foreach (ObjectId id in layerTable){LayerTableRecord layer = (LayerTableRecord)tr.GetObject(id, OpenMode.ForRead);layers.Add(layer);}tr.Commit();}return layers;
}
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