我想在表格中datagrid控件中动态添加下拉框，现有以下代码，但做出来的东西还是无法正确显示，应该怎么做：
namespace DataGridBackColor
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private DataTable dtData;
ComboBox comboBox = new ComboBox();
private void Form1_Load(object sender, EventArgs e)
{
init_WareHouse();
// comboBox.Visible = false;
this.dgv_User.Controls.Add(comboBox);
}
private void initData() {
dtData = new DataTable();
dtData.Columns.Add("物料名称");
dtData.Columns.Add("库房地址");
dtData.Columns.Add("库位地址");
dtData.Columns.Add("物料编码");
dtData.Columns.Add("交货数量");
dtData.Columns.Add("(单位)");
DataRow drData;
drData = dtData.NewRow();
drData[0] ="啊啊啊啊";
drData[1] = "bbbbbbb";
drData[2] = "ccccccccc";
drData[3] = "545455554";
drData[4] = "1";
drData[5] = "PC";
dtData.Rows.Add(drData);
this.dgv_User.DataSource = dtData;
}
private void init_WareHouse() {
DataTable dtShelf = new DataTable();
dtShelf.Columns.Add("Value");
dtShelf.Columns.Add("Name");
//String[] temp_ShelfInfo = ShelfInfo[i].Split(',');
DataRow drShelf;
drShelf = dtShelf.NewRow();
drShelf[0] ="二级库";
drShelf[1] ="4545454545";
dtShelf.Rows.Add(drShelf);
comboBox.ValueMember = "Value";
comboBox.DisplayMember = "Name";
comboBox.DataSource = dtShelf;
comboBox.DropDownStyle = ComboBoxStyle.DropDownList;
this.dgv_User.Controls.Add(comboBox);
}
private void Serach_Click(object sender, EventArgs e)
{
initData();
}
private void dgv_User_CurrentCellChanged(object sender, EventArgs e)
{
try
{
if (this.dgv_User.CurrentCell.ColumnNumber==1)
{
MessageBox.Show("ddddd");
Rectangle rect = new Rectangle(dgv_User.CurrentCell.ColumnNumber, dgv_User.CurrentCell.RowNumber,10,20);
comboBox.Left = rect.Left;
comboBox.Top = rect.Top;
comboBox.Width = rect.Width;
comboBox.Height = rect.Height;
comboBox.Visible = true;
}
}
catch
{
}
}
}
}
你可以在datagrid里直接添加下拉框就行了。你手动添加行的时候就可以设置
private void dgv_User_CurrentCellChanged(object sender, EventArgs e)
{
try
{
var sss = dgv_User.GetCellDisplayRectangle(dgv_User.CurrentCell.ColumnIndex, dgv_User.CurrentCell.RowIndex,true);
if (this.dgv_User.CurrentCell.ColumnIndex == 1)
{
comboBox.Left =
sss.Left;
comboBox.Top = sss.Top;
comboBox.Width = sss.Width;
comboBox.Height = sss.Height;
comboBox.Visible = true;
}
}
catch
{
}
}