///
///发出请求添加好友信息
///
frmcheckMessage checkMessage = new frmcheckMessage();
checkMessage.ShowDialog();//标记:显示发送消息的窗体
string AddMessage = (string)UserHelper.message;//标记:message为辅助类UserHelper中的全局变量
sql = string.Format("insert into dbo.Messages (FromUserId,ToUserId,[Message],MessageTypeId,MessageState values({0},{1},'{2}',{3},{4})", UserHelper.Id, friendId, AddMessage, 2, 0);
DBHelper.connection.Open();
command = new SqlCommand(sql, DBHelper.connection);
int number = command.ExecuteNonQuery();
if (number != 1)
{
MessageBox.Show("发送失败!", "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Error); }
备注:把消息传递到辅助类UserHelpe中的message中,怎么程序在运行时总是在消息窗体中,传递不出数据。
///发出请求添加好友信息
///
frmcheckMessage checkMessage = new frmcheckMessage();
checkMessage.ShowDialog();//标记:显示发送消息的窗体
string AddMessage = (string)UserHelper.message;//标记:message为辅助类UserHelper中的全局变量
sql = string.Format("insert into dbo.Messages (FromUserId,ToUserId,[Message],MessageTypeId,MessageState values({0},{1},'{2}',{3},{4})", UserHelper.Id, friendId, AddMessage, 2, 0);
DBHelper.connection.Open();
command = new SqlCommand(sql, DBHelper.connection);
int number = command.ExecuteNonQuery();
if (number != 1)
{
MessageBox.Show("发送失败!", "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Error); }
备注:把消息传递到辅助类UserHelpe中的message中,怎么程序在运行时总是在消息窗体中,传递不出数据。
{
// public static string Id = "";
public static string message = "";
}
消息窗体具体代码如下:
private void btnCheck3_Click(object sender, EventArgs e)
{
UserHelper.message = txtMessage3.Text;
this.Hide();
}
private void btnCheck3_Click(object sender, EventArgs e)
{
UserHelper.message = txtMessage3.Text;
this.DialogResult = DialogResult.OK;
}
把发送消息的窗口代码修改,如下:
frmcheckMessage checkMessage = new frmcheckMessage();
if (checkMessage.ShowDialog() == DialogResult.OK)//标记:显示发送消息的窗体
{
string AddMessage = (string)UserHelper.message;//标记:message为辅助类UserHelper中的全局变量
sql = string.Format("insert into dbo.Messages (FromUserId,ToUserId,[Message],MessageTypeId,MessageState values({0},{1},'{2}',{3},{4})", UserHelper.Id, friendId, AddMessage, 2, 0);
DBHelper.connection.Open();
command = new SqlCommand(sql, DBHelper.connection);
int number = command.ExecuteNonQuery();
if (number != 1)
{
MessageBox.Show("发送失败!", "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Error); }
}
1.必须进行if(checkMessage.ShowDialog() == DialogResult.OK)判断.
2.子窗体要执行this.DialogResult = DialogResult.OK; 进行关闭,而不是this.Hide();