我有一个 DataGridView，最后一列添加为 DataGridViewComboBoxColumn
问题是，我可以通过执行来确定“注释”列是否存在
if(grid.Columns.Contains("Notes")){
}
但是，如果我对 DataGridViewComboBoxColumn 的标题尝试同样的方法，它就不起作用了。任何人都可以建议，为什么会这样？
这是创建网格并添加 DataGridViewComboBoxColumn 的函数，Mikhail Tregubov 建议在底部使用代码来确定该列是否已经存在......即使此函数之前运行过，它也不会将其拾取为存在并且它就在那里！
private void _buildDataTable()
{
// create a data table object
DataTable dataTable = new DataTable();
// add columns
dataTable.Columns.Add("Channel");
dataTable.Columns.Add("Date");
dataTable.Columns.Add("First Name");
dataTable.Columns.Add("Last Name");
dataTable.Columns.Add("DOB");
dataTable.Columns.Add("NI Number");
dataTable.Columns.Add("Notes");
dataTable.Columns.Add("Agg. Max[%]");
dataTable.Columns.Add("Agg. Inclination[%/min]");
dataTable.Columns.Add("Agg. LagPhase[s]");
// CONCENTRATION COL
// TEST TYPE DROP DOWN COL
// add initial rows row to data grid for 4 channels - only 4 possible
DataRow dataRow1 = dataTable.Rows.Add();
DataRow dataRow2 = dataTable.Rows.Add();
DataRow dataRow3 = dataTable.Rows.Add();
DataRow dataRow4 = dataTable.Rows.Add();
// Add initial data to the new rows
dataRow1[0] = "1"; // channel number
dataRow1[1] = DateTime.Now.ToString("d/M/yyyy");
dataRow1[7] = "0";
dataRow1[8] = "0";
dataRow1[9] = "0";
dataRow2[0] = "2"; // channel number
dataRow2[1] = DateTime.Now.ToString("d/M/yyyy");
dataRow2[7] = "0";
dataRow2[8] = "0";
dataRow2[9] = "0";
dataRow3[0] = "3"; // channel number
dataRow3[1] = DateTime.Now.ToString("d/M/yyyy");
dataRow3[7] = "0";
dataRow3[8] = "0";
dataRow3[9] = "0";
dataRow4[0] = "4"; // channel number
dataRow4[1] = DateTime.Now.ToString("d/M/yyyy");
dataRow4[7] = "0";
dataRow4[8] = "0";
dataRow4[9] = "0";
// Add drop downs to the table for test type
DataGridViewComboBoxColumn testTypeCol = new DataGridViewComboBoxColumn();
// create a new datatable for the test type
DataTable dataTable2 = new DataTable();
// Add the column
dataTable2.Columns.Add(new DataColumn("Value", typeof(string)));
// Add drop down rows
dataTable2.Rows.Add("A23187");
dataTable2.Rows.Add("ADP");
dataTable2.Rows.Add("Arachidonic Acid");
dataTable2.Rows.Add("Collagen");
dataTable2.Rows.Add("CRP");
dataTable2.Rows.Add("Epinephrine");
dataTable2.Rows.Add("PMA");
dataTable2.Rows.Add("Ristocetin");
dataTable2.Rows.Add("TRAP6");
dataTable2.Rows.Add("U46619");
dataTable2.Rows.Add("γ-Thrombin");
// set the columns data source
testTypeCol.DataSource = dataTable2;
// set properties
testTypeCol.ValueMember = "Value";
testTypeCol.HeaderText = "Aggregation Test Type";
// set the data in the gridview
this._dataGrid.DataSource = dataTable;
if (this._dataGrid.Columns.Contains("Aggregation Test Type") && this._dataGrid.Columns["Aggregation Test Type"].GetType() == typeof(DataGridViewComboBoxColumn))
{
MessageBox.Show("ALREADY");
}
else
{
// add column to the datagridview
this._dataGrid.Columns.Add(testTypeCol);
}
}