datagridview的不允许用户删除的行 [英] datagridview not allowing user to delete row

问题描述

我绑定到一个DataTable一个DataGridView。该列不自动生成的，我在代码中创建它们。我希望我的用户将能够添加和删除行，所以我有AllowUserToAddRows = TRUE，AllowUserToDeleteRows =真

现在的问题是：当他们选择一行，按DEL键，该信息由行单元格的默认值取代。该行不会消失。

这是什么行为（为什么/发生了什么），我怎么能围绕它得到什么？

这里是我的网创建代码：

 私人无效resetDowntimeGrid（）
 {
 downtimeEntries =新的DataTable（ ）; 
 
 downtimeEntries.Columns.Add（类别的typeof（INT））; 
 downtimeEntries.Columns.Add（HoursDown）; 
 downtimeEntries.Columns.Add（理）; 
 
 //deptDowntimeCategories.Select（，ListOrder ASC）; 
 
 gridDowntime.Columns.Clear（）; 
 
 DataGridViewComboBoxColumn cboCategory =新DataGridViewComboBoxColumn（）; 
 {
 cboCategory.HeaderText =类别; 
 cboCategory.DataSource = deptDowntimeCategories; 
 cboCategory.DisplayMember =姓名; 
 cboCategory.ValueMember =类别ID; 
 cboCategory.DataPropertyName =类别; 
 cboCategory.Width = Convert.ToInt16（gridDowntime.Width * 0.20）; 
 cboCategory.DisplayStyle = DataGridViewComboBoxDisplayStyle.ComboBox; 
 cboCategory.AutoComplete = TRUE; 
 
 gridDowntime.Columns.Add（cboCategory）; 
} 
 
 DataGridViewTextBoxColumn txtDowntime =新DataGridViewTextBoxColumn（）; 
 txtDowntime.HeaderText =HoursDown; 
 txtDowntime.DataPropertyName =HoursDown; 
 txtDowntime.Width = Convert.ToInt16（gridDowntime.Width * 0.15）; 
 gridDowntime.Columns.Add（txtDowntime）; 
 
 DataGridViewTextBoxColumn txtReason =新DataGridViewTextBoxColumn（）; 
 txtReason.HeaderText =理性; 
 txtReason.DataPropertyName =理性; 
 txtReason.Width = Convert.ToInt16（gridDowntime.Width * 0.60）; 
 gridDowntime.Columns.Add（txtReason）; 
 
 gridDowntime.DataSource = downtimeEntries; 
 
 lblStatus.Text =停机电网复位。 
} 
  

解决方案

我创建了一个空的WinForm和只是把电网规范进去。所不同的是我怎么有 DataGridView.EditMode 设置。我是有 = EditOnEnter ，但删除的作品完美，如果我将它设置 = EditOnKeystroke。

I have a datagridview bound to a datatable. The columns are not autogenerated, I create them in code. I want my user's to be able to add and delete a row, so I have AllowUserToAddRows = true, AllowUserToDeleteRows = true.

The problem is: when they select a row and press DEL, the information is replaced by the row cell's default values. The row does not go away.

What is this behavior (why/what is happening), and how can I get around it?

Here is my grid creation code:

    private void resetDowntimeGrid()
    {
        downtimeEntries = new DataTable();

        downtimeEntries.Columns.Add("Category", typeof(int));
        downtimeEntries.Columns.Add("HoursDown");
        downtimeEntries.Columns.Add("Reason");

        //deptDowntimeCategories.Select("", "ListOrder ASC");

        gridDowntime.Columns.Clear();

        DataGridViewComboBoxColumn cboCategory = new DataGridViewComboBoxColumn();
        {
            cboCategory.HeaderText = "Category";
            cboCategory.DataSource = deptDowntimeCategories;
            cboCategory.DisplayMember = "Name";
            cboCategory.ValueMember = "CategoryID";
            cboCategory.DataPropertyName = "Category";
            cboCategory.Width = Convert.ToInt16(gridDowntime.Width * 0.20);
            cboCategory.DisplayStyle = DataGridViewComboBoxDisplayStyle.ComboBox;
            cboCategory.AutoComplete = true;

            gridDowntime.Columns.Add(cboCategory);
        }

        DataGridViewTextBoxColumn txtDowntime = new DataGridViewTextBoxColumn();
        txtDowntime.HeaderText = "HoursDown";
        txtDowntime.DataPropertyName = "HoursDown";
        txtDowntime.Width = Convert.ToInt16(gridDowntime.Width * 0.15);
        gridDowntime.Columns.Add(txtDowntime);

        DataGridViewTextBoxColumn txtReason = new DataGridViewTextBoxColumn();
        txtReason.HeaderText = "Reason";
        txtReason.DataPropertyName = "Reason";
        txtReason.Width = Convert.ToInt16(gridDowntime.Width * 0.60);
        gridDowntime.Columns.Add(txtReason);

        gridDowntime.DataSource = downtimeEntries;

        lblStatus.Text = "Downtime grid reset.";
    }

解决方案

I created an empty winform and just put the grid code into it. The difference was how I had the DataGridView.EditMode set. I had it = EditOnEnter, but the delete works perfectly if I set it = EditOnKeystroke.

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