DataGridview 一列的单元格不能有不同的类型

发布于 2024-11-29 21:50:19 字数 133 浏览 1 评论 0原文

好吧,我有一个 datagridview ,我有一列,我想做的就是控制该列中的单元格,有时使其成为组合框,有时使其成为文本框......等等

我可以使一列的单元格只有一种类型,我可以在一列中输入多个单元格吗?

希望清楚。

well I have a datagridview , and i have a column, all i want to do is controlling the cells in this column, sometimes make it combobox, sometimes textBox ....etc

I can make the cells of a column have only one type , can i make many cells type in one column ?

hope it is clear .

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小鸟爱天空丶 2024-12-06 21:50:19

有两种方法可以执行此操作:

  1. 将 DataGridViewCell 转换为现有的特定单元格类型。例如,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托管的单元格。

请参阅下面的示例代码,其中说明了这些技巧。

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;
        }

取自此处

There are two ways to do this:

  1. Cast a DataGridViewCell to a certain cell type that exists. For example, convert a DataGridViewTextBoxCell to DataGridViewComboBoxCell type.
  2. Create a control and add it into the controls collection of DataGridView, set its location and size to fit the cell that to be host.

See my sample code below which illustrates the 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;
        }

Taken from here

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