-1
我工作的Windows窗体有一个CheckedListBox控件(cbIntendedMajor),我试图插入到Access数据库中。我没有返回任何错误,但是当我选择多个复选框项目时,只有第一个选定的项目用逗号插入到表格中。任何关于我在这里失踪的指针?以下是我的代码:Visual Studio - Windows窗体 - CheckedListBox插入不正确。 C#
private void button1_Click(object sender, EventArgs e)
{
string conString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Temp\Interest.accdb";
OleDbConnection con = new OleDbConnection(conString);
OleDbCommand cmd = con.CreateCommand();
string text = "INSERT INTO InterestCard (FirstName, LastName, StreetAddress, City, State, ZipCode, Phone, Email, DOB, Gender, HighSchool, GraduationYear, PlannedTerm, IntendedMajor) VALUES (@FName, @LName, @SAddress, @City, @State, @Zip, @Phone, @Email, @DOB, @Gender, @HSchool, @GradYear, @PTerm, @IMajor)";
cmd.CommandText = text;
con.Open();
cmd.Parameters.AddWithValue("@FName", txtFirstName.Text);
cmd.Parameters.AddWithValue("@LName", txtLastName.Text);
cmd.Parameters.AddWithValue("@SAddress", txtAddress.Text);
cmd.Parameters.AddWithValue("@City", txtCity.Text);
cmd.Parameters.AddWithValue("@State", txtState.Text);
cmd.Parameters.AddWithValue("@Zip", txtZipCode.Text);
cmd.Parameters.AddWithValue("@Phone", txtPhone.Text);
cmd.Parameters.AddWithValue("@Email", txtEmail.Text);
cmd.Parameters.AddWithValue("@DOB", dtpDOB.Value);
cmd.Parameters.AddWithValue("@Gender", rbFemale.Checked);
cmd.Parameters.AddWithValue("@HSchool", txtHighSchool.Text);
cmd.Parameters.AddWithValue("@GradYear", txtGraduationYear.Text);
cmd.Parameters.AddWithValue("@PTerm", txtTermofEnrollment.Text);
foreach (string s in cbIntendedMajor.CheckedItems)
{
cmd.Parameters.AddWithValue("@IMajor", s + ",");
}
cmd.ExecuteNonQuery();
}
你反复调用AddWithValue(“@ IMajor”),只有最后一个会有效果。首先创建字符串, *然后*调用AddWithValue – 2014-12-04 16:54:53
这是有道理的,我甚至没有注意到我在循环中添加,谢谢。 – user1863593 2014-12-04 16:57:38