DataGridViewComboBoxColumn用法总结

本文详细介绍了如何在DataGridView中使用DataGridViewComboBoxColumn添加下拉列,包括设置列名、列标题、宽度、下拉选项、单击显示模式等,并提供了示例代码及链接。

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为DataGridView添加下拉列:
DataGridViewComboBoxColumn colShow =  new DataGridViewComboBoxColumn();
colShow.Name =  " spaceType ";
colShow.HeaderText =  " 空间类型 ";
colShow.Width =  200;
colShow.Items.Add( " 选项一 ");
colShow.Items.Add( " 选项二 ");
colShow.DisplayIndex = 0;

dataGridView1.Columns.Insert(0, colShow); 

设定值:
dataGridView1.Rows[ 1].Cells[ 2].Value =  " 选项二 ";
设置单击下拉模式(否则需要点两下才能显示下拉框):
DataGridView属性 EditMode 为 EditOnEnter  
EditingControlShowing += new DataGridViewEditingControlShowingEventHandler(dgv_EditingControlShowing);
url: http://greatverve.cnblogs.com/archive/2012/02/01/DataGridViewComboBoxColumn.html

转载于:https://www.cnblogs.com/greatverve/archive/2012/02/01/DataGridViewComboBoxColumn.html

``` public partial class FrmTLConfig : Form { public FrmTLConfig() { InitializeComponent(); dgv_TowerLight.AllowUserToAddRows = false; // 禁止添加新行 dgv_TowerLight.AllowUserToDeleteRows = false;// 禁止删除已有行 UpdateTLConfigUi(); } private void UpdateTLConfigUi() { var dataSource = ParamManager.Instance.LocalParam.TowerLightConfigurationParam.ConfigurationModels; if (dataSource != null) { dgv_TowerLight.DataSource = new BindingList<TowerLightConfigurationModel>(dataSource); } //dgv_TowerLight.AutoGenerateColumns = false; // 禁用自动生成 // 记录需要替换的名 List<string> columnsToReplace = new List<string>(); // 获取名 foreach (DataGridViewColumn column in dgv_TowerLight.Columns) { if (column.Name == "MachineStatus") { continue; } columnsToReplace.Add(column.Name); } //替换 foreach (string columnName in columnsToReplace) { ReplaceColumn(columnName); } // 同步下拉框的选中值 //SyncComboBoxValues(); } private void ReplaceColumn(string columnName) { // 创建一个 DataGridViewComboBoxColumn DataGridViewComboBoxColumn comboCol = new DataGridViewComboBoxColumn { Name = columnName, HeaderText = columnName, DataPropertyName = columnName, DataSource = Enum.GetValues(typeof(TLState)), // 绑定枚举数据源 ValueType = typeof(TLState) }; // 替换原有(或添加新) int index = dgv_TowerLight.Columns.Contains(columnName) ? dgv_TowerLight.Columns[columnName].Index : dgv_TowerLight.Columns.Count; if (dgv_TowerLight.Columns.Contains(columnName)) { dgv_TowerLight.Columns.RemoveAt(index); } dgv_TowerLight.Columns.Insert(index, comboCol); } private void btn_Save_Click(object sender, EventArgs e) { // 保存逻辑 for (int rowIndex = 0; rowIndex < dgv_TowerLight.Rows.Count; rowIndex++) { DataGridViewRow row = dgv_TowerLight.Rows[rowIndex]; TowerLightConfigurationModel model = (TowerLightConfigurationModel)dgv_TowerLight.Rows[rowIndex].DataBoundItem; foreach (DataGridViewColumn column in dgv_TowerLight.Columns) { if (column.Name == "MachineStatus") { continue; } DataGridViewComboBoxCell comboBoxCell = (DataGridViewComboBoxCell)row.Cells[column.Name]; typeof(TowerLightConfigurationModel).GetProperty(column.Name).SetValue(model, comboBoxCell.Value); } } } } dgv_TowerLight绑定的是数据库的数据,界面加载时会出现DataGridViewComboBoxCell值无效```dgv_TowerLight绑定的是数据库的数据,界面加载时会出现DataGridViewComboBoxCell值无效
03-29
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