datarow

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I have a DataTable. What I want to do is change the value of all rows of the Colum "X" of the DataTable. For example: if row value is "TRUE" then change it into "Yes" else change it into "No" 回答1: maybe you could try this int columnNumber = 5; //Put your column X number here for(int i = 0; i < yourDataTable.Rows

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I have a DataTable. What I want to do is change the value of all rows of the Colum "X" of the DataTable. For example: if row value is "TRUE" then change it into "Yes" else change it into "No" 回答1: maybe you could try this int columnNumber = 5; //Put your column X number here for(int i = 0; i < yourDataTable.Rows

问题 I have a DataTable that I am pulling from a DataSet. From the DataTable, I want to use the Where clause to return a particular row. I looked at "How can I select a row from a datatable using two variable values?" but I get an error "Cannot implicitly convert type 'System.Data.DataRow[]' to 'System.Data.DataRow'" I searched google, but could not find a solution. My code is: mySqlDataAdapter.Fill(myDataSet); DataTable dtTable = myDataSet.Tables[0]; DataRow dr = dtTable.Select("VendorID = " +

问题 I have a DataTable that I am pulling from a DataSet. From the DataTable, I want to use the Where clause to return a particular row. I looked at "How can I select a row from a datatable using two variable values?" but I get an error "Cannot implicitly convert type 'System.Data.DataRow[]' to 'System.Data.DataRow'" I searched google, but could not find a solution. My code is: mySqlDataAdapter.Fill(myDataSet); DataTable dtTable = myDataSet.Tables[0]; DataRow dr = dtTable.Select("VendorID = " +

问题 I want to create a "table" that the user will complete which has an unknown number of rows. To illustrate it, let's say it is to enter details from a receipt after a shopping trip - i.e. the number of rows (or items) will be unknown. To acheive this I want to create a grid with a single row, and two columns containing textboxes to enter the item name and price: +-------+---------+ + Item + Price + +-------+---------+ + Beans + 0.99 + +-------+---------+ Then after the first row has been

问题 I want to create a "table" that the user will complete which has an unknown number of rows. To illustrate it, let's say it is to enter details from a receipt after a shopping trip - i.e. the number of rows (or items) will be unknown. To acheive this I want to create a grid with a single row, and two columns containing textboxes to enter the item name and price: +-------+---------+ + Item + Price + +-------+---------+ + Beans + 0.99 + +-------+---------+ Then after the first row has been

问题 Ok, I would like to extract a DataRow out a DataReader . I have been looking around for quite some time and it doesn't look like there is a simple way to do this. I understand a DataReader is more a collection of rows but it only read one row at the time. So my question: is there any way to extract a DataRow out the current row of a DataReader ? 回答1: Is there any way to extract a DataRow out the current row of a DataReader ? No, at least no simple way. Every DataRow belongs to one Table. You

问题 Ok, I would like to extract a DataRow out a DataReader . I have been looking around for quite some time and it doesn't look like there is a simple way to do this. I understand a DataReader is more a collection of rows but it only read one row at the time. So my question: is there any way to extract a DataRow out the current row of a DataReader ? 回答1: Is there any way to extract a DataRow out the current row of a DataReader ? No, at least no simple way. Every DataRow belongs to one Table. You

问题 Ok, I would like to extract a DataRow out a DataReader . I have been looking around for quite some time and it doesn't look like there is a simple way to do this. I understand a DataReader is more a collection of rows but it only read one row at the time. So my question: is there any way to extract a DataRow out the current row of a DataReader ? 回答1: Is there any way to extract a DataRow out the current row of a DataReader ? No, at least no simple way. Every DataRow belongs to one Table. You

问题 I want to loop through the values of a particular column in datatable? can anyone please give the C# coding? 回答1: Hi try below code snippet using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Data; namespace ConsoleApplication1 { class Program { public static DataTable GetDataTable() { //Create a new DataTable object DataTable objDataTable = new DataTable(); //Create three columns with string as their type objDataTable.Columns.Add("Column 1",