我试图在称为“已处理”的字段中将一个位值(true或false)写入我的数据库中。我目前正在试图通过传递布尔值来做到这一点,但我得到一个错误,说不能从类型varchar转换为位。任何人都可以看到我的逻辑中发生了什么?将位值写入数据库
protected void CheckBoxProcess_CheckedChanged(object sender, EventArgs e)
{
bool update;
bool trueBool = true;
bool falseBool = false;
string checkedString = "UPDATE SecureOrders SET processed = '%" + trueBool + "%' WHERE fName LIKE '%" + DefaultGrid.SelectedRow.Cells[2].Text + "%' AND lName LIKE '% " + DefaultGrid.SelectedRow.Cells[3].Text + "%'";
string uncheckedString = "UPDATE SecureOrders SET processed = '%" + falseBool + "%' WHERE fName LIKE '%" + DefaultGrid.SelectedRow.Cells[2].Text + "%' AND lName LIKE '% " + DefaultGrid.SelectedRow.Cells[3].Text + "%'";
CheckBox cb = (CheckBox)sender;
GridViewRow gvr = (GridViewRow)cb.Parent.Parent;
DefaultGrid.SelectedIndex = gvr.RowIndex;
update = Convert.ToBoolean(DefaultGrid.SelectedValue);
orderByString = orderByList.SelectedItem.Value;
fieldString = searchTextBox.Text;
System.Configuration.ConnectionStringSettings connectionString;
connectionString = rootWebConfig.ConnectionStrings.ConnectionStrings["secureodb"];
// Create an SqlConnection to the database.
using (SqlConnection connection = new SqlConnection(connectionString.ToString()))
{
connection.Open();
SqlCommand checkedCmd = new SqlCommand(checkedString, connection);
SqlCommand uncheckedCmd = new SqlCommand(uncheckedString, connection);
dataAdapter = new SqlDataAdapter("SELECT * FROM SecureOrders", connection);
// create the DataSet
dataSet = new DataSet();
// fill the DataSet using our DataAdapter
dataAdapter.Fill(dataSet, "SecureOrders");
DataView source = new DataView(dataSet.Tables[0]);
DefaultGrid.DataSource = source;
if (cb.Checked == true)
{
checkedCmd.ExecuteNonQuery();
}
else
{
uncheckedCmd.ExecuteNonQuery();
}
connection.Close();
}
}
为什么不ü保持'int'和''0' 1'? – Sudantha