将不同的DataGridView单元格类型添加到列

问题描述

我的datagridview有两列（[问题]，[答案]）。根据已知的问题类型（是/否 复选框，文本 文本框， FileUpload 按钮），我希望列单元格具有相应的 control 。

My datagridview has two columns ([Question], [Answer]). Depending on the known question type (Yes/No Checkbox, Text Textbox, FileUpload Button) I want the column cell to have the respective control.

示例

Datagridview行：

Datagridview Rows:

1. [问题] 你抽烟吗？ [回答]（是 复选框）


2. [问题]你几岁？ [答案]（文本 文本框）


3. [问题]文档上传[答案]（ FileUpload Button ）

1. [Question] Do you smoke? [Answer] (YesNo Checkbox)
2. [Question] How old are you? [Answer] (Text Textbox)
3. [Question] Document upload [Answer] (FileUpload Button)

---

Work

我以编程方式创建我的datagridviews。

---

Work

I programmatically create my datagridviews.

Private Sub FormatQuestionDgv(ByVal dgv As DataGridView)
    Dim ColQ As New DataGridViewTextBoxColumn
    Dim ColA As New DataGridViewColumn

    'Header text
    ColQ.HeaderText = "Question"
    ColA.HeaderText = "Answer"

    'Name
    ColQ.Name = "ColQ"
    ColA.Name = "ColA"

    'Widths
    ColQ.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill
    ColA.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill

    'Add columns
    With dgv.Columns
        .Add(ColQ)
        .Add(ColA)
    End With
End Sub

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问题

如您所见在我的工作中，答案列的类型为 DataGridViewColumn 。我当时不知道问题的类型。因此，我将其声明为普通列，而不是 DataGridViewCheckBoxColumn ， DataGridViewTextBoxColumn ， DataGridViewButtonColumn ...

---

Problem

As you can see in my work, the answer column is of DataGridViewColumn type. I do not know the question type at that moment. Therefore I declare it as a normal column instead of DataGridViewCheckBoxColumn, DataGridViewTextBoxColumn, DataGridViewButtonColumn...

由于这些类型与 DataGridViewColumn 类型不同，因此出现以下错误：

Since those are not the same type as DataGridViewColumn, I get the following error:

如何在1个DataGridViewColumn中添加不同的控件类型？

How do I go about adding different control types in 1 DataGridViewColumn? Is it even possible?

推荐答案

您是否看过这些：

以下是MSDN文章...

Following from the MSDN article...

有两种方法可以做到这一点：

There are two ways to do this:

1. 投射a DataGridViewCell 到存在的某个单元格类型。以
   为例，将 DataGridViewTextBoxCell 转换为
   DataGridViewComboBoxCell 类型。


2. 创建一个控件并将其添加到
   DataGridView 的控件集合中，设置其位置和大小以适合要作为$ b $的单元格b主机。

1. Cast a DataGridViewCell to a certain cell type that exists. Forexample, convert a DataGridViewTextBoxCell toDataGridViewComboBoxCell type.
2. Create a control and add it into the controls collection ofDataGridView, set its location and size to fit the cell that to behost.

以下示例代码说明了这些技巧：

Here's some sample code which illustrates these tricks:

private void Form5_Load(object sender, EventArgs e)
{
    DataTable dt = new DataTable();
    dt.Columns.Add("name");
    for (int j = 0; j < 10; j++)
    {
        dt.Rows.Add("");
    }
    this.dataGridView1.DataSource = dt;
    this.dataGridView1.Columns[0].Width = 200;

    /*
     * First method : Convert to an existed cell type such ComboBox cell,etc
     */

    DataGridViewComboBoxCell ComboBoxCell = new DataGridViewComboBoxCell();
    ComboBoxCell.Items.AddRange(new string[] { "aaa","bbb","ccc" });
    this.dataGridView1[0, 0] = ComboBoxCell;
    this.dataGridView1[0, 0].Value = "bbb";

    DataGridViewTextBoxCell TextBoxCell = new DataGridViewTextBoxCell();
    this.dataGridView1[0, 1] = TextBoxCell;
    this.dataGridView1[0, 1].Value = "some text";

    DataGridViewCheckBoxCell CheckBoxCell = new DataGridViewCheckBoxCell();
    CheckBoxCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter;
    this.dataGridView1[0, 2] = CheckBoxCell;
    this.dataGridView1[0, 2].Value = true;

    /*
     * Second method : Add control to the host in the cell
     */
    DateTimePicker dtp = new DateTimePicker();
    dtp.Value = DateTime.Now.AddDays(-10);
    //add DateTimePicker into the control collection of the DataGridView
    this.dataGridView1.Controls.Add(dtp);
    //set its location and size to fit the cell
    dtp.Location = this.dataGridView1.GetCellDisplayRectangle(0, 3,true).Location;
    dtp.Size = this.dataGridView1.GetCellDisplayRectangle(0, 3,true).Size;
}

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