How to Programmatically Add New Rows to a DataGridView?

Add new rows to DataGridView programmatically

When working with data using the DataGridView control, you may need to dynamically add new rows at runtime. Here's how to achieve this:

Use DataRows

<code class="language-c#">// 创建一个新的 DataTable 行
DataRow row = datatable1.NewRow();

// 设置列值
row["column2"] = "column2";
row["column6"] = "column6";

// 将新行添加到 DataTable
datatable1.Rows.Add(row);</code>

Add to DataGridView

To add new rows to a DataGridView, there are several ways:

Method 1: Clone existing rows

<code class="language-c#">// 克隆现有行
DataGridViewRow row = (DataGridViewRow)yourDataGridView.Rows[0].Clone();

// 设置单元格值
row.Cells[0].Value = "XYZ";
row.Cells[1].Value = 50.2;

// 将新行添加到 DataGridView
yourDataGridView.Rows.Add(row);</code>

Method 2: Clone by column name

<code class="language-c#">// 克隆现有行
DataGridViewRow row = (DataGridViewRow)yourDataGridView.Rows[0].Clone();

// 按列名设置单元格值
row.Cells["Column2"].Value = "XYZ";
row.Cells["Column6"].Value = 50.2;

// 将新行添加到 DataGridView
yourDataGridView.Rows.Add(row);</code>

Method 3: Quickly insert multiple rows

<code class="language-c#">// 使用值插入多行
this.dataGridView1.Rows.Add("five", "six", "seven","eight");

// 在索引 0 处插入一行
this.dataGridView1.Rows.Insert(0, "one", "two", "three", "four");</code>

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