使用AutoCompleteSource从Textbox中的数据库中获取int值的步骤如下:
下面是一个示例代码,演示如何使用AutoCompleteSource从Textbox中的数据库中获取int值:
// 前端代码
Textbox textbox = new Textbox();
textbox.AutoCompleteMode = AutoCompleteMode.Suggest;
textbox.AutoCompleteSource = AutoCompleteSource.CustomSource;
// 后端代码
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
SqlCommand command = new SqlCommand("SELECT intValue FROM tableName", connection);
SqlDataReader reader = command.ExecuteReader();
CustomAutoCompleteSource autoCompleteSource = new CustomAutoCompleteSource();
while (reader.Read())
{
int value = reader.GetInt32(0);
autoCompleteSource.AddValue(value);
}
textbox.AutoCompleteCustomSource = autoCompleteSource;
}
textbox.AutoComplete = true;
请注意,上述示例代码仅为演示目的,实际应用中需要根据具体情况进行适当的修改和优化。
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