无法将布尔值转换为字符串 [英] Cannot convert bool to string
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问题描述
OP将其发布为答案:
返回blnSucess；
在键入错误的每个位置搜索此代码，主要错误是this.此处的错误消息是无法将布尔类型隐式转换为字符串."
The OP posted this as an Answer:
"return blnSucess;
search this code in every place where it is typed the main error is this.here the error message is "cannot convert implicitly type bool to string."
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Data.SqlClient;
using System.Web.Security;
using System.Configuration;
[WebService(Namespace="http://tempuri.org/"), WebServiceBinding(ConformsTo=WsiProfiles.BasicProfile1_1), Microsoft.VisualBasic.CompilerServices.DesignerGenerated(), System.Web.Script.Services.ScriptService()]
public class ChatService : System.Web.Services.WebService
{
[WebMethod()]
public string GetMessages(string strFromUserID, string strToUserID)
{
bool blnSucess = false;
string strMessage = null;
DateTime dDateSent = DateTime.MinValue;
strMessage = "";
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
SqlCommand cmd = null;
MembershipUser MemUser = null;
string strFromUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strFromUserID));
strFromUserGUID = MemUser.ProviderUserKey.ToString();
string strToUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strToUserID));
strToUserGUID = MemUser.ProviderUserKey.ToString();
cmd = new SqlCommand("SELECT TOP(1) Message, DateSent FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID) ORDER BY DateSent DESC", conn);
cmd.Parameters.AddWithValue("@SenderUserID", strToUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strFromUserGUID);
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
dDateSent = (DateTime)reader["DateSent"];
//If dDateSent > DateAdd(DateInterval.Minute, -5, DateTime.Now) Then
strMessage = (string)reader["Message"];
blnSucess = true;
//End If
}
reader.Close();
cmd.Dispose();
if (blnSucess)
{
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID)";
cmd.Parameters.AddWithValue("@SenderUserID", strToUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strFromUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
}
conn.Close();
}
return strMessage;
}
[WebMethod()]
public string SendMessage(string strSenderUserID, string strRecipientUserID, string strMessage)
{
bool blnSucess = false;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
SqlCommand cmd = null;
MembershipUser MemUser = null;
string strRecipientUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strRecipientUserID));
strRecipientUserGUID = MemUser.ProviderUserKey.ToString();
string strSenderUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strSenderUserID));
strSenderUserGUID = MemUser.ProviderUserKey.ToString();
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID)";
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
cmd = conn.CreateCommand();
cmd.CommandText = "INSERT INTO IMChats(RecipientUserID, SenderUserID, Message, DateSent) VALUES (@RecipientUserID, @SenderUserID, @Message, @DateSent)";
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@Message", strMessage);
cmd.Parameters.AddWithValue("@DateSent", DateTime.Now);
cmd.ExecuteNonQuery();
blnSucess = true;
cmd.Dispose();
conn.Close();
}
<big>return blnSucess;</big>
}
//ENQ = chr(5) # Request to send
//EOT = chr(4) # Ready to receive
//ACK = chr(6) # Correct reception
//NAK = chr(21) # Incorrect reception
//////////////////////////////////
//// Sender init chat
//////////////////////////////////
//// Sender ENQ Wait 4 ACK
//// Recip ACK ENQ Wait 4 ACK ACK
//// Sender ACK ACK Wait 4 EOT
//// Recip EOT
//////////////////////////////////
//// Recip wait 4 chat
//////////////////////////////////
//// Recip ACK ENQ Wait 4 ACK
//// Sender ACK ACK Wait 4 EOT
//// Recip EOT
[WebMethod()]
public string CheckChatReq(string strMyUserID)
{
string strSenderUserID = null;
string strMessage = null;
DateTime dDateSent = DateTime.MinValue;
strSenderUserID = "";
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
SqlCommand cmd = null;
string strMyUserGUID = "";
string strSenderUserGUID = "";
MembershipUser MemUser = Membership.GetUser(HttpUtility.UrlDecode(strMyUserID));
strMyUserGUID = MemUser.ProviderUserKey.ToString();
cmd = new SqlCommand("SELECT TOP(1) SenderUserID, Message, DateSent FROM [IMChats] WHERE ([RecipientUserID] = @RecipientUserID) ORDER BY DateSent DESC", conn);
cmd.Parameters.AddWithValue("@RecipientUserID", strMyUserGUID);
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
dDateSent = (DateTime)reader["DateSent"];
//If dDateSent > DateAdd(DateInterval.Minute, -5, DateTime.Now) Then
strMessage = (string)reader["Message"];
// ENQ
if (strMessage == "~::::=[(HANDSHAKE)]=::::~[ENQ]")
{
strSenderUserGUID = reader["SenderUserID"].ToString();
strSenderUserID = Membership.GetUser(new Guid(strSenderUserGUID)).UserName;
//End If
}
}
reader.Close();
cmd.Dispose();
if (! (string.IsNullOrEmpty(strSenderUserGUID)))
{
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID)";
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strMyUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
}
conn.Close();
}
return strSenderUserID;
}
[WebMethod()]
public bool SendChatReq(string strSenderUserID, string strRecipientUserID)
{
bool blnSucess = false;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
SqlCommand cmd = null;
MembershipUser MemUser = null;
string strRecipientUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strRecipientUserID));
strRecipientUserGUID = MemUser.ProviderUserKey.ToString();
string strSenderUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strSenderUserID));
strSenderUserGUID = MemUser.ProviderUserKey.ToString();
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID)";
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([SenderUserID] = @RecipientUserID AND [RecipientUserID] = @SenderUserID)";
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
cmd = conn.CreateCommand();
cmd.CommandText = "INSERT INTO IMChats(RecipientUserID, SenderUserID, Message, DateSent) VALUES (@RecipientUserID, @SenderUserID, @Message, @DateSent)";
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
// ENQ
cmd.Parameters.AddWithValue("@Message", "~::::=[(HANDSHAKE)]=::::~[ENQ]");
cmd.Parameters.AddWithValue("@DateSent", DateTime.Now);
cmd.ExecuteNonQuery();
blnSucess = true;
cmd.Dispose();
conn.Close();
}
<big>return blnSucess;</big>
}
[WebMethod()]
public string ChatCleanUpAll(string strMyUserID)
{
bool blnSucess = false;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
SqlCommand cmd = null;
string strMyUserGUID = null;
MembershipUser MemUser = Membership.GetUser(HttpUtility.UrlDecode(strMyUserID));
strMyUserGUID = MemUser.ProviderUserKey.ToString();
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([RecipientUserID] = @RecipientUserID)";
cmd.Parameters.AddWithValue("@RecipientUserID", strMyUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
conn.Close();
blnSucess = true;
}
<big>return blnSucess;</big>
}
[WebMethod()]
public bool CleanUp(string strMyUserID, string strSenderUserID, bool blnSendEOT)
{
bool blnSucess = false;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
SqlCommand cmd = null;
string strMyUserGUID = null;
MembershipUser MemUser = Membership.GetUser(HttpUtility.UrlDecode(strMyUserID));
strMyUserGUID = MemUser.ProviderUserKey.ToString();
string strSenderUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strSenderUserID));
strSenderUserGUID = MemUser.ProviderUserKey.ToString();
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID)";
cmd.Parameters.AddWithValue("@RecipientUserID", strMyUserGUID);
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
if (blnSendEOT)
{
cmd = conn.CreateCommand();
cmd.CommandText = "INSERT INTO IMChats(RecipientUserID, SenderUserID, Message, DateSent) VALUES (@RecipientUserID, @SenderUserID, @Message, @DateSent)";
cmd.Parameters.AddWithValue("@RecipientUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@SenderUserID", strMyUserGUID);
// EOT
cmd.Parameters.AddWithValue("@Message", "~::::=[(HANDSHAKE)]=::::~[EOT]");
cmd.Parameters.AddWithValue("@DateSent", DateTime.Now);
cmd.ExecuteNonQuery();
cmd.Dispose();
}
conn.Close();
blnSucess = true;
}
<big>return blnSucess;</big>
}
[WebMethod()]
public bool SendNak(string strSenderUserID, string strRecipientUserID)
{
bool blnSucess = false;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
SqlCommand cmd = null;
MembershipUser MemUser = null;
string strRecipientUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strRecipientUserID));
strRecipientUserGUID = MemUser.ProviderUserKey.ToString();
string strSenderUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strSenderUserID));
strSenderUserGUID = MemUser.ProviderUserKey.ToString();
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID)";
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
cmd = conn.CreateCommand();
cmd.CommandText = "INSERT INTO IMChats(RecipientUserID, SenderUserID, Message, DateSent) VALUES (@RecipientUserID, @SenderUserID, @Message, @DateSent)";
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
// NAK
cmd.Parameters.AddWithValue("@Message", "~::::=[(HANDSHAKE)]=::::~[NAK]");
cmd.Parameters.AddWithValue("@DateSent", DateTime.Now);
cmd.ExecuteNonQuery();
blnSucess = true;
cmd.Dispose();
conn.Close();
}
<big>return blnSucess;</big>
}
[WebMethod()]
public bool SendAck(string strSenderUserID, string strRecipientUserID)
{
bool blnSucess = false;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
SqlCommand cmd = null;
MembershipUser MemUser = null;
string strRecipientUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strRecipientUserID));
strRecipientUserGUID = MemUser.ProviderUserKey.ToString();
string strSenderUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strSenderUserID));
strSenderUserGUID = MemUser.ProviderUserKey.ToString();
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID)";
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
cmd = conn.CreateCommand();
cmd.CommandText = "INSERT INTO IMChats(RecipientUserID, SenderUserID, Message, DateSent) VALUES (@RecipientUserID, @SenderUserID, @Message, @DateSent)";
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
// ACK
cmd.Parameters.AddWithValue("@Message", "~::::=[(HANDSHAKE)]=::::~[ACK]");
cmd.Parameters.AddWithValue("@DateSent", DateTime.Now);
cmd.ExecuteNonQuery();
blnSucess = true;
cmd.Dispose();
conn.Close();
}
<big>return blnSucess;</big>
}
[WebMethod()]
public bool GetAck(string strRecipientUserID, string strSenderUserID)
{
bool blnSucess = false;
string strMessage = null;
DateTime dDateSent = DateTime.MinValue;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
SqlCommand cmd = null;
MembershipUser MemUser = null;
string strRecipientUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strRecipientUserID));
strRecipientUserGUID = MemUser.ProviderUserKey.ToString();
string strSenderUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strSenderUserID));
strSenderUserGUID = MemUser.ProviderUserKey.ToString();
cmd = new SqlCommand("SELECT TOP(1) Message, DateSent FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID) ORDER BY DateSent DESC", conn);
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
dDateSent = (DateTime)reader["DateSent"];
//If dDateSent > DateAdd(DateInterval.Minute, -5, DateTime.Now) Then
strMessage = (string)reader["Message"];
// ACK
if (strMessage == "~::::=[(HANDSHAKE)]=::::~[ACK]")
{
blnSucess = true;
//End If
}
}
reader.Close();
cmd.Dispose();
if (blnSucess)
{
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID)";
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
}
conn.Close();
}
<big>return blnSucess;</big>
}
[WebMethod()]
public bool GetNak(string strRecipientUserID, string strSenderUserID)
{
bool blnSucess = false;
string strMessage = null;
DateTime dDateSent = DateTime.MinValue;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
SqlCommand cmd = null;
MembershipUser MemUser = null;
string strRecipientUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strRecipientUserID));
strRecipientUserGUID = MemUser.ProviderUserKey.ToString();
string strSenderUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strSenderUserID));
strSenderUserGUID = MemUser.ProviderUserKey.ToString();
cmd = new SqlCommand("SELECT TOP(1) Message, DateSent FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID) ORDER BY DateSent DESC", conn);
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
dDateSent = (DateTime)reader["DateSent"];
//If dDateSent > DateAdd(DateInterval.Minute, -5, DateTime.Now) Then
strMessage = (string)reader["Message"];
// NAK
if (strMessage == "~::::=[(HANDSHAKE)]=::::~[NAK]")
{
blnSucess = true;
//End If
}
}
reader.Close();
cmd.Dispose();
if (blnSucess)
{
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID)";
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
}
conn.Close();
}
<big>return blnSucess;</big>
}
[WebMethod()]
public bool SendEot(string strSenderUserID, string strRecipientUserID)
{
bool blnSucess = false;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
SqlCommand cmd = null;
MembershipUser MemUser = null;
string strRecipientUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strRecipientUserID));
strRecipientUserGUID = MemUser.ProviderUserKey.ToString();
string strSenderUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strSenderUserID));
strSenderUserGUID = MemUser.ProviderUserKey.ToString();
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([SenderUserID] = @RecipientUserID AND [RecipientUserID] = @SenderUserID)";
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
cmd = conn.CreateCommand();
cmd.CommandText = "INSERT INTO IMChats(RecipientUserID, SenderUserID, Message, DateSent) VALUES (@RecipientUserID, @SenderUserID, @Message, @DateSent)";
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
// EOT
cmd.Parameters.AddWithValue("@Message", "~::::=[(HANDSHAKE)]=::::~[EOT]");
cmd.Parameters.AddWithValue("@DateSent", DateTime.Now);
cmd.ExecuteNonQuery();
blnSucess = true;
cmd.Dispose();
conn.Close();
}
<big>return blnSucess;</big>
}
[WebMethod()]
public bool GetEot(string strRecipientUserID, string strSenderUserID)
{
<big>bool blnSucess = false;</big>
string strMessage = null;
DateTime dDateSent = DateTime.MinValue;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
SqlCommand cmd = null;
MembershipUser MemUser = null;
string strRecipientUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strRecipientUserID));
strRecipientUserGUID = MemUser.ProviderUserKey.ToString();
string strSenderUserGUID = null;
MemUser = Membership.GetUser(HttpUtility.UrlDecode(strSenderUserID));
strSenderUserGUID = MemUser.ProviderUserKey.ToString();
cmd = new SqlCommand("SELECT TOP(1) Message, DateSent FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID) ORDER BY DateSent DESC", conn);
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
dDateSent = (DateTime)reader["DateSent"];
//If dDateSent > DateAdd(DateInterval.Minute, -5, DateTime.Now) Then
strMessage = (string)reader["Message"];
// EOT
if (strMessage == "~::::=[(HANDSHAKE)]=::::~[EOT]")
{
blnSucess = true;
//End If
}
}
reader.Close();
cmd.Dispose();
if (blnSucess)
{
cmd = conn.CreateCommand();
cmd.CommandText = "DELETE FROM [IMChats] WHERE ([SenderUserID] = @SenderUserID AND [RecipientUserID] = @RecipientUserID)";
cmd.Parameters.AddWithValue("@SenderUserID", strSenderUserGUID);
cmd.Parameters.AddWithValue("@RecipientUserID", strRecipientUserGUID);
cmd.ExecuteNonQuery();
cmd.Dispose();
}
conn.Close();
}
<big>return blnSucess;</big>
}
}
OP答案已添加到问题文本.添加了代码块，标题更改以反映问题. -OriginalGriff [/edit]
[edit]OP answer added to question text. Code block added, title changed to reflect question. - OriginalGriff[/edit]
推荐答案
如果您查看错误列表，它将告诉您它在抱怨哪个文件和哪一行.
双击错误，它将带您到错误的代码.
在这种情况下，我敢打赌它是SendMessage方法.
什么是返回类型?
blnSucess是什么类型?
您为什么认为它是在说
If you look at your errors list, it will tell you which file and which line it is complaining about.
Double click the error, and it will take you to the faulty code.
In this case, I will bet it is the SendMessage method.
What is it''s return type?
What type is blnSucess?
Why do you think it is saying
"I can''t convert a bool variable to a string unless you tell me I really must, because I think you intended to either have your method return a bool, or to return a string instead of a bool when you got to the end of your method".每次您结识该消息时都太长，以致于无法阅读，因此它们采用的是更便宜的版本.
Only that message is way too long to read every time you c**k up, so they went with the pithier version.
这篇关于无法将布尔值转换为字符串的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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