功能为选择datagrid某一条记录,该记录的值传给各个textbox,现在问题如下:首次修改记录成功,第二次选择datagrid某条记录，点修改按钮却出现异常｀｀
代码如下：
private void button7_Click(object sender, System.EventArgs e)
{
string company_id = textBox3.Text;
string companyName = textBox4.Text;
string companyAddress = textBox5.Text;
string tel = textBox6.Text;
string fax = textBox7.Text;
string linkMan = textBox8.Text;
string postalcode = textBox9.Text;
string website = textBox10.Text;
string email = textBox11.Text;
string bankAccounts = textBox12.Text;
string taxNumber = textBox13.Text;
string bank = textBox14.Text;
string managementVariety = textBox15.Text;
string settlementWay = textBox16.Text;
string addDate = textBox17.Text;
string comString = "update CompanyInfo set Company_id = ' "+company_id+ " ',CompanyName = ' "+companyName+ " ',CompanyAddress = ' "+companyAddress+ " ',Tel = ' "+tel+ " ',Fax = ' "+fax+ " ',LinkMan = ' "+linkMan+ " ',Postalcode = ' "+postalcode+ " ',Website = ' "+website+ " ',Email = ' "+email+ " ',BankAccounts = ' "+bankAccounts+ " ',TaxNumber = ' "+taxNumber+ " ',Bank = ' "+bank+ " ',ManagementVariety = ' "+managementVariety+ " ',SettlementWay = ' "+settlementWay+ " ',AddDate = ' "+addDate+ " ' where (Company_id = ' "+company_id+ " ') ";
SqlCommand myCom = sqlConnection1.CreateCommand();
myCom.CommandText = comString;
try
{
myCom.ExecuteNonQuery();
int n = this.sqlDataAdapter1.Fill(this.dataSet12, "Company_id ");
if(n==0)
{
MessageBox.Show( "添加失败，请与技术人员联系！ ");
}
else
{
MessageBox.Show( "修改成功！ ");
this.dataSet12.Clear();
this.sqlDataAdapter1.Fill(this.dataSet12, "厂商资料 ");
this.dataGrid2.DataSource = this.dataSet12;
this.dataGrid2.DataMember = "厂商资料 ";
this.dataGrid2.Refresh();
this.sqlConnection1.Close();
}
}
catch(Exception b)
{
//MessageBox.Show(b.toString());
}
finally
{
}
sqlConnection1.Close();
}
如何解决，急急｀｀｀｀
------解决方案--------------------
sqlConnection1关闭了?
------解决方案--------------------
1、sqlConnection1.Close();关闭了
2、第一次都更新成功，说明执行更新的语句没有问题，请跟踪 comString 的值，看第二次是否正确