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DATAREADER HASROWS IN

05/17/2015 10:58:04

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Hello, there is no method to directly get the number of rows in a datareader , what you can do is: [Visual Basic] If myReader. HasRows Then Do While myReader.Read ... My code: string sqlQuery1 = "select * from employees where depid=6"; SqlDataReader Dr1 = dbconn.RunQueryReturnDataReader(sqlQuery1); if(Dr1.read()) { //or if ... Hi, I have a situation where I have two datareaders, and I want to make sure any given field from Datareader A exists in Datareader B before I can do Trying to see if it is beneficial to add an if (dr. HasRows ) before the while (dr.read()) function. I mean, technically if it doesn't have rows it isn't going to read ... asp.net c# examples. linq, array, ajax, xml, silverlight, xaml, string, list, date time, object, validation, xpath, xslt and many more. I think the key is the DataReader .Read method... if there is a row to read, it will return true... if there are no rows, it returns false... Hi, I am creating a website project and I need to write data to textbox from database. I used datareader . I am sure that it is connected to database, but it can not ... You can use the ADO.NET DataReader to retrieve a read-only, forward-only stream of data from a database. Results are returned as the query executes, and are stored in ... no you cant from DataReader . 1. use two select queries, for count (ExecuteScalar) rows.. 2. use Dataset logic 3. or from the same logic your using. you will get value ... Hi, just ask, what is the difference between hasrows and read() for sqldatareader ? I tried both and seem quite the same. Ie, If reader.Read() Then
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