在数据网格视图 c# 中的特定行中添加组合框
本文关键字：添加 组合 网格 数据网 视图 数据 | 更新日期: 2023-09-27 18:37:23
我想在数据网格视图中的特定单元格中有一个组合框。 有人可以帮忙吗？对于我正在使用的数据表的表
问题：我想将组合框放在特定的单元格中，例如第 1 列和第 1 行。
以下是我填充表格的方式——
public DataTable createGridForForm(int rows, int columns)
{
// Create the output table.
DataTable table = new DataTable();
for (int i = 1; i <= columns; i++)
{
table.Columns.Add("column " + i.ToString());
}
for (int i = 1; i < rows; i++)
{
DataRow dr = table.NewRow();
// populate data row with values here
ListBox test = new ListBox();
myTabPage.Controls.Add(test);
table.Rows.Add(dr);
}
return table;
}
以下是我创建数据网格视图的方法。
private void createGridInForm(int rows, int columns)
{
DataGridView RunTimeCreatedDataGridView = new DataGridView();
RunTimeCreatedDataGridView.DataSource = createGridForForm(rows, columns);
//DataGridViewColumn ID_Column = RunTimeCreatedDataGridView.Columns[0];
//ID_Column.Width = 200;
int positionForTable = getLocationForTable();
RunTimeCreatedDataGridView.BackgroundColor = Color.WhiteSmoke;
RunTimeCreatedDataGridView.Size = new Size(995, 200);
RunTimeCreatedDataGridView.Location = new Point(5, positionForTable);
myTabPage.Controls.Add(RunTimeCreatedDataGridView);
}
这是我的整个代码----
public partial class Form1 : Form
{
String line;
String typeOfTable;
int amountOfTablesInTab;
delegate void SetComboBoxCellType(int iRowIndex);
bool bIsComboBox = false;
List<TabPage> tapPages = new List<TabPage>();
TabPage myTabPage;
DataGridView RunTimeCreatedDataGridView;
private const String TABS = "TABS";
private const String TABLES = "TABLES";
private const String GRID = "grid";
private const String LIST = "list";
private const int LOCATION_TABLE_TYPE = 2;
private const int LOCATION_TABLE_AMOUNT_ROWS = 3;
private const int LOCATION_TABLE_AMOUNT_COLUMNS = 4;
private const int AMOUNT_COLUMNS_IN_LIST = 2;
private const int LOCATION_TAB_FOR_TABLE = 1;
private const int STARTING_POSITION_FOR_TABLES = 5;
private const int TABLE_SIZE= 205;
String[] splitTableArray;
List<String> tabList = new List<String>();
List<String> tablesList = new List<String>();
public Form1()
{
InitializeComponent();
//test();
getFormContentFromFile();
}
private void getFormContentFromFile()
{
using (StreamReader reader = new StreamReader("neo2G.res"))
{
while (!reader.EndOfStream)
{
line = reader.ReadLine();
if (line.Equals(TABS))
{
while (!line.Equals(".."))
{
line = reader.ReadLine();
if (!line.Equals("..") && !line.Equals(""))
{
tabList.Add(line);
}
}
}
if (line.Equals(TABLES))
{
while (!line.Equals(".."))
{
line = reader.ReadLine();
if (!line.Equals(".."))
{
tablesList.Add(line);
}
}
}
}
createTablesInTab();
}
}
private void searchTablesToMatch(int tabCount)
{
int tableCount = 0;
int tabLocationForTables;
amountOfTablesInTab = 0;
foreach(String table in tablesList)
{
splitTableLineToArray(tablesList[tableCount]);
if (int.TryParse(splitTableArray[LOCATION_TAB_FOR_TABLE], out tabLocationForTables))
{
if(tabLocationForTables == tabCount)
{
typeOfTable = splitTableArray[LOCATION_TABLE_TYPE];
amountOfTablesInTab++;
if(typeOfTable.Equals(LIST))
{
createListInForm(int.Parse(splitTableArray[LOCATION_TABLE_AMOUNT_ROWS]));
}
else if(typeOfTable.Equals(GRID))
{
createGridInForm(int.Parse(splitTableArray[LOCATION_TABLE_AMOUNT_ROWS]), int.Parse(splitTableArray[LOCATION_TABLE_AMOUNT_COLUMNS]));
}
}
{
}
}
else
{
MessageBox.Show("The format for TABLES must be identical to the table format in the Configuration file format", "File Error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
tableCount++;
}
}
private int getLocationForTable()
{
int position = 0;
for (int i = 1; i <= amountOfTablesInTab; i++)
{
position = position + TABLE_SIZE;
if (i == 1)
{
position = STARTING_POSITION_FOR_TABLES;
}
}
return position;
}
private void createGridInForm(int rows, int columns)
{
RunTimeCreatedDataGridView = new DataGridView();
DataGridViewComboBoxCell c = new DataGridViewComboBoxCell();
myTabPage.Controls.Add(RunTimeCreatedDataGridView);
c.Items.Add("A");
c.Items.Add("B");
c.Items.Add("C");
RunTimeCreatedDataGridView.DataSource = createGridForForm(rows, columns);
//Assign it to your dataGridView
RunTimeCreatedDataGridView.Rows[1].Cells[1] = c;
int positionForTable = getLocationForTable();
RunTimeCreatedDataGridView.BackgroundColor = Color.WhiteSmoke;
RunTimeCreatedDataGridView.Size = new Size(995, 200);
RunTimeCreatedDataGridView.Location = new Point(5, positionForTable);
}
private void createListInForm(int rows)
{
RunTimeCreatedDataGridView = new DataGridView();
RunTimeCreatedDataGridView.DataSource = createListForForm(rows);
int positionForTable = getLocationForTable();
RunTimeCreatedDataGridView.BackgroundColor = Color.WhiteSmoke;
RunTimeCreatedDataGridView.Size = new Size(995, 200);
RunTimeCreatedDataGridView.Location = new Point(5, positionForTable);
myTabPage.Controls.Add(RunTimeCreatedDataGridView);
}
private void createTablesInTab()
{
int countTab = 0;
foreach (String tab in tabList)
{
countTab++;
createTabInForm(tab);
searchTablesToMatch(countTab);
}
}
private void createTabInForm(String tabName)
{
tabName = Regex.Replace(tabName, @"['d-]", string.Empty);
tabName = tabName.Trim(':', '"');
myTabPage = new TabPage(tabName);
tabControl1.TabPages.Add(myTabPage);
myTabPage.AutoScroll = true;
}
private void splitTableLineToArray(String tableLine)
{
splitTableArray = tableLine.Split(',');
}
public DataTable createGridForForm(int rows, int columns)
{
// Create the output table.
DataTable table = new DataTable();
for (int i = 1; i <= columns; i++)
{
table.Columns.Add("column " + i.ToString());
}
for (int i = 1; i < rows; i++)
{
DataRow dr = table.NewRow();
// populate data row with values here
table.Rows.Add(dr);
}
return table;
}
public DataTable createListForForm(int rows)
{
// Create the output table.
DataTable table = new DataTable();
for (int i = 1; i <= AMOUNT_COLUMNS_IN_LIST ; i++)
{
table.Columns.Add("column " + i.ToString());
}
for (int i = 1; i < rows; i++)
{
DataRow dr = table.NewRow();
// populate data row with values here
table.Rows.Add(dr);
}
return table;
}
}
首先必须使用 DataGridViewComboBoxCell 类创建"组合框"
此类具有与原始组合框非常相似的属性
试试这个
//Create comboBox
DataGridViewComboBoxCell c = new DataGridViewComboBoxCell();
c.Items.Add("A");
c.Items.Add("B");
c.Items.Add("C");
//Assign it to your dataGridView
yourDataGridView.Rows[rowNum].Cells[colNum] = c;
您可以将 RowDatabound 事件侦听器添加到网格视图中，并且可以控制要实现的逻辑。
您可以添加如下事件侦听器
RunTimeCreatedDataGridView.RowDataBound += new GridViewRowEventHandler(RunTimeCreatedDataGridView_RowDataBound);
事件处理程序将是受保护的无效RunTimeCreatedDataGridView_RowDataBound（对象发送器，GridViewRowEventArgs e） {"要显示的逻辑"复选框}
我找到了答案
//create columns as textbox columns(or whatever you want)
DataGridViewTextBoxColumn dgc = new DataGridViewTextBoxColumn();
DataGridViewTextBoxColumn dgc1 = new DataGridViewTextBoxColumn();
//add the colums to the table
dataGridView1.Columns.Add(dgc);
dataGridView1.Columns.Add(dgc1);
//set header text here if you wish
//create dgv combobox cells and add items to the collection
DataGridViewComboBoxCell cbc = new DataGridViewComboBoxCell();
cbc.Items.Add("item 1");
cbc.Items.Add("item 2");
DataGridViewComboBoxCell cbc1 = new DataGridViewComboBoxCell();
cbc1.Items.Add("item 1");
cbc1.Items.Add("item 2");
//create 2 rows here so that you can insert future columns without having them go above your comboboxes
dataGridView1.Rows.Add(2);
//set row one cells to combobox cells
dataGridView1.Rows[0].Cells[0] = cbc;
dataGridView1.Rows[0].Cells[1] = cbc1;