EDN Admin
Well-known member
hello folks,
I have developed a program that reads values from serial port and stores it in the MYSQL database. I want to retrieve all the values from the database to a textbox present in windows form application on click of button..
can any1 Help..?
thanks in advance.
this is the code : but it only gives me the 1st value from the SQL DB
private: System::Void button5_Click(System::Object^ sender, System::EventArgs^ e) <br/>
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re {<br/>
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re int query_state;<br/>
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re mysql_init(&mysql);<br/>
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re connection = mysql_real_connect(&mysql,"localhost","root","root","weight",0,0,0);<br/>
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re if(connection == NULL)<br/>
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re {<br/>
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re textBox3->Text="SQL Not Connected";<br/>
<span style="white-space
re }<br/>
<span style="white-space
re else <br/>
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re {<br/>
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re std::string DOIT= "select * from weht";<br/>
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re query_state = mysql_query(connection,DOIT.c_str());<br/>
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re if (query_state != 0)<br/>
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re {<br/>
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re <br/>
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re textBox3->Text="query error";<span style="white-space
re
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re }<br/>
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re else<br/>
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re {<br/>
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re result = mysql_store_result(connection);<br/>
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re <span style="white-space
re <br/>
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re row = mysql_fetch_row(result);<br/>
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re std:
stringstream o;<br/>
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re o << row[0];<br/>
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re std::string s(o.str());<span style="white-space
re
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re textBox3->Text= gcnew System::String(s.c_str());<span style="white-space
re
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re }<br/>
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re <br/>
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re <br/>
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re }<br/>
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re <br/>
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re <br/>
<span style="white-space
re }
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I have developed a program that reads values from serial port and stores it in the MYSQL database. I want to retrieve all the values from the database to a textbox present in windows form application on click of button..
can any1 Help..?
thanks in advance.
this is the code : but it only gives me the 1st value from the SQL DB
private: System::Void button5_Click(System::Object^ sender, System::EventArgs^ e) <br/>
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View the full article