WPF新手,我有一个包含数据库名称的组合框。当我选择名称时,先前选择的名称的详细信息会填充我的文本框。我需要显示当前选择的名称。有人能告诉我为什么会这样。
private void comboBoxDisplay_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
string constring = "Data Source=tcp:*****.net;Initial Catalog=****;Persist Security Info=True;User ID=*******;Password=*****";
string Query = "select * from Rewards where Name='" + comboBoxDisplay.Text + "' ;";
SqlConnection conDataBase = new SqlConnection(constring);
SqlCommand cmdDataBase = new SqlCommand(Query, conDataBase);
SqlDataReader myReader;
try
{
conDataBase.Open();
myReader = cmdDataBase.ExecuteReader();
while (myReader.Read())
{
string sReid = myReader.GetInt32(0).ToString();
string sName = myReader.GetString(1);
txtRewardsId.Text = sReid;
txtName.Text = sName;
答案 0 :(得分:0)
您应该使用SelectedItem
属性而不是Text
。
string Query = "select * from Rewards where Name='"
+ comboBoxDisplay.SelectedItem.ToString() + "' ;";