关于DataGridView新增修改
如上图，我创建DataGridView对象后，在页面加载时会取数据库里相应数据。
然后，
假如新增行或修改行明细时，希望能即时保存到数据库里。
请问该怎么做呢？ C# DataGridView --------------------编程问答-------------------- 在后面添加一个操作列,选择CommandFiled,然后把所有列都转成TemplateFiled. 一点编辑,后面什么都出来了。 --------------------编程问答-------------------- --------------------编程问答--------------------
private void txinfo_CellClick(object sender, DataGridViewCellEventArgs e) {
tel_ = txinfo.Rows[e.RowIndex].Cells["tel"].Value.ToString().Trim(); label3.Text = tel_; }
private void txinfo_CellValueChanged(object sender, DataGridViewCellEventArgs e) {
if (e.RowIndex > -1) {
string tell = txinfo.Rows[e.RowIndex].Cells["tel"].FormattedValue.ToString().Trim(); if (tel_ == tell) {
string sqlStr = "update ywtx set province='" + txinfo.Rows[e.RowIndex].Cells["province"].FormattedValue.ToString() + "', city='" + txinfo.Rows[e.RowIndex].Cells["city"].FormattedValue.ToString() + "', name='" + txinfo.Rows[e.RowIndex].Cells["name"].FormattedValue.ToString() + "', email='" + txinfo.Rows[e.RowIndex].Cells["email"].FormattedValue.ToString() + "', address='" + txinfo.Rows[e.RowIndex].Cells["address"].FormattedValue.ToString() + "', need='" + txinfo.Rows[e.RowIndex].Cells["need"].FormattedValue.ToString() + "', price='" + txinfo.Rows[e.RowIndex].Cells["price"].FormattedValue.ToString() + "', gh='" + txinfo.Rows[e.RowIndex].Cells["gh"].FormattedValue.ToString() + "', time='" + txinfo.Rows[e.RowIndex].Cells["time"].FormattedValue.ToString() + "', bz='" + txinfo.Rows[e.RowIndex].Cells["bz"].FormattedValue.ToString() + "', zt='" + txinfo.Rows[e.RowIndex].Cells["zt"].FormattedValue.ToString() + "' where tel='" + tell + "'"; conn.Open();
SqlCommand comm = new SqlCommand(sqlStr, conn); comm.ExecuteNonQuery(); conn.Close(); } else {
string sqlStr = "select count(*) from ywtx where tel='" + tell + "' "; SqlCommand comm = new SqlCommand(sqlStr, conn); conn.Open();
int result = (int)comm.ExecuteScalar(); conn.Close(); if (result > 0) {
MessageBox.Show("电话号码已存在！请修改！"); } else { string
sqlStr1
=
"update
ywtx
set
province='"
+
补充：.NET技术 , C#
