将多个选定行从一个网格复制到另一个网格

Question

我有这段代码可以将选定的行从一个网格复制到另一个网格

private void btnAddEmployee_Click(object sender, EventArgs e)
{
    LayoutControl lc = new LayoutControl();
    lc.Dock = DockStyle.Top;
    LookUpEdit userShift = new LookUpEdit();
    userShift.Properties.TextEditStyle = TextEditStyles.DisableTextEditor;
    userShift.Properties.DataSource = paint.GetShiftTime();
    userShift.Properties.DisplayMember = "ShiftTime";
    userShift.Properties.ValueMember = "id";
    userShift.Properties.ShowHeader = false;
    var date = DateTime.Now;

    if (8 < date.Hour && date.Hour < 16)
    {
        userShift.EditValue = 1;
    }
    else if (16 < date.Hour && date.Hour < 24)
    {
        userShift.EditValue = 2;
    }
    else
    {
        userShift.EditValue = 3;
    }

    lc.AddItem(Resources.workingHours, userShift).TextVisible = true;
    lc.Height = 50;
    this.Controls.Add(lc);
    this.Dock = DockStyle.Top;
    int[] selectedRows = gridView4.GetSelectedRows();

    for(int n=0;n< selectedRows.Length;n++)
    //foreach (int index in selectedRows)
    {
        if (DevExpress.XtraEditors.XtraDialog.Show(lc, Resources.options,                         MessageBoxButtons.OKCancel) == DialogResult.OK)
        { 
            //Prevent duplicate data
            for (int i = 0; i < gridView5.RowCount; i++)
            {
                if (gridView4.GetRowCellValue(gridView4.FocusedRowHandle, "Matricule").ToString() == gridView5.GetRowCellValue(i, "Matricule").ToString())
                {
                    XtraMessageBox.Show(Resources.employeeAlreadyAdded, Resources.error, MessageBoxButtons.OK, MessageBoxIcon.Warning);
                    return;
                }
            }

            DataRow r = EmplDT.NewRow();
            r[0] = gridView4.GetRowCellValue(gridView4.FocusedRowHandle, "Matricule").ToString();
            r[1] = gridView4.GetRowCellValue(gridView4.FocusedRowHandle, "Employé").ToString();
            r[2] = userShift.Text;
            r[3] = userShift.EditValue;
            r[4] = txtDate.EditValue;
            EmplDT.Rows.Add(r);

这是我在 gridview 5 中创建列的代码

DataTable EmplDT = new DataTable();
 void CreateEmployeeTable()
    {
        EmplDT.Columns.Add("Matricule");
        EmplDT.Columns.Add("Employé");
        EmplDT.Columns.Add("Heure");
        EmplDT.Columns.Add("idShiftTime", typeof(Int32));
        EmplDT.Columns.Add("Date", typeof(DateTime));
        gridControl5.DataSource = EmplDT;
        gridView5.Columns["idShiftTime"].Visible = false;
        gridView5.Columns["Date"].Visible = false;
    }

我在这段代码中有两个问题：
第一个是当我运行代码时它只添加第一条记录然后我收到重复的错误消息。
第二个我只想第一次显示布局控件。
提前致谢，对不起我的英语。

Answer 1

从 devexpress gridview 循环遍历选定的行并获取一行可以像这样简单得多

int[] selectedRows = gridView4.GetSelectedRows();
for (int i = 0; i < selectedRows.Length; i++)
{
     // Get a DataRow and fill it with all values from the this selected row
     // This is where you went wrong, you kept using only the first selected row
     DataRow rowGridView4 = (gridView4.GetRow(selectedRows[i]) as DataRowView).Row;

     // Do a check for doubles here
     DataRow[] doubles = EmplDT.Select("Matricule = '" + rowGridView4[0].ToString() +"'");
     if (doubles.Length > 0)
     {
         XtraMessageBox.Show(Resources.employeeAlreadyAdded, Resources.error, MessageBoxButtons.OK, MessageBoxIcon.Warning);
         return;         
     }

     // fix for error  "This row already belongs to another table"
     DataRox row = EmplDT.NewRow();
     row[0] = rowGridView4[0];
     row[1] = rowGridView4[1];
     row[2] = userShift.Text;
     row[3] = userShift.EditValue;
     row[4] = txtDate.EditValue;

     EmplDT.Rows.Add(row);
}

请注意，在此位置测试双打将导致复制所有记录，直到找到重复记录。因此，在您的错误消息之后，可能会复制一些记录，而有些则没有。
这是你的本意吗？

我会省略错误消息并跳过重复记录。如果需要，您仍然可以显示一条消息，其中包含复制了多少条记录。

int[] selectedRows = gridView4.GetSelectedRows();
for (int i = 0; i < selectedRows.Length; i++)
{
     // Get a DataRow and fill it with all values from the this selected row
     // This is where you went wrong, you kept using only the first selected row
     DataRow rowGridView4 = (gridView4.GetRow(selectedRows[i]) as DataRowView).Row;

     // Do a check for doubles here
     DataRow[] doubles = EmplDT.Select("Matricule = '" + rowGridView4[0].ToString() + "'");
     if (doubles.Length == 0)
     {
         // fix for error  "This row already belongs to another table"
         DataRox row = EmplDT.NewRow();
         row[0] = rowGridView4[0];
         row[1] = rowGridView4[1];
         row[2] = userShift.Text;
         row[3] = userShift.EditValue;
         row[4] = txtDate.EditValue;

         EmplDT.Rows.Add(row);
     }
}

将多个选定行从一个网格复制到另一个网格

Copy multiple selected rows from one grid to another

c#

winforms

devexpress-gridcontrol