c#关于数据在两个from的datagridview上互用?
发布网友
发布时间：2023-04-25 05:41
共2个回答
热心网友
时间：2023-10-14 14:52
更简单的就是form1和form2共用同一个数据源，从form1传递选中行的数据源对应的index，在form2里面将对应的数据行绑定出来，修改就行了追问有简单的逻辑代码么 发来看看吧 谢谢
追答public partial class Form3 : Form
{
public Form3(){InitializeComponent();}
private void Form3_Load(object sender, EventArgs e){DataTable dt = new DataTable();dt.Columns.Add("proctname", typeof(String));dt.Columns.Add("number", typeof(int));for (var i = 0; i < 30; i++){DataRow row = dt.NewRow();row["proctname"] = "产品" + i;row["number"] = new Random(Guid.NewGuid().GetHashCode()).Next(0, 10000);
dt.Rows.Add(row);
}
dataGridView1.DataSource = dt;
}
private void dataGridView1_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
{
if (e.RowIndex == -1 || e.ColumnIndex == -1)
{
return;
}
if (e.Button != MouseButtons.Right) return;
DataTable dt = dataGridView1.DataSource as DataTable;
int i = dt.Rows.Count;
DataRow row = dt.Rows[e.RowIndex];
Form4 f = new Form4(row, e.RowIndex);
f.Show();
f.doSaveOperate += new Form4.saveData(f_doSaveOperate);
}
void f_doSaveOperate(DataRow row, int rowIndex)
{
DataTable dt = dataGridView1.DataSource as DataTable;
dt.Rows[rowIndex]["proctname"] = row["proctname"];
dt.Rows[rowIndex]["number"] = row["number"];
dataGridView1.DataSource = dt;
}
}
}
public partial class Form4 : Form
{public delegate void saveData(DataRow row, int rowIndex);
public event saveData doSaveOperate;
DataRow _row;
int _rowIndex;
public Form4(DataRow row, int rowIndex){_row = row;_rowIndex = rowIndex;InitializeComponent(); }
private void Form4_Load(object sender, EventArgs e)
{ textBox1.Text = _row["proctname"].ToString(); textBox2.Text = _row["number"].ToString();}
private void button1_Click(object sender, EventArgs e){_row["proctname"] = textBox1.Text;_row["number"] = textBox2.Text;doSaveOperate(_row, _rowIndex);}
}
热心网友
时间：2023-10-14 14:52
可以在form2的构造函数修改一下，如：
class form2:Winform
{
form2(Datatable dt)
{
dgv.DataSource=dt;
}
}
当用户右键选中时，怎可以实例化form2，传递表对象；如果想只传递一行，那可以直接使用Datatable中的DataRow对象进行传递啊
