C# copy a single row from one datatable to other

C# copy a single row from one datatable to other

To copy a single row from one DataTable to another in C#, you can use the ImportRow method of the destination DataTable. Here's an example:

DataTable sourceTable = new DataTable(); // populate sourceTable with data DataTable destinationTable = new DataTable(); // create destinationTable with the same schema as sourceTable DataRow sourceRow = sourceTable.Rows[0]; // get the row to copy DataRow newRow = destinationTable.NewRow(); newRow.ItemArray = sourceRow.ItemArray; // copy the values from the source row destinationTable.Rows.Add(newRow); // add the new row to the destination table

In this example, we have a sourceTable DataTable with some data, and a destinationTable DataTable with the same schema as the sourceTable. We then get the row to copy from the sourceTable by index (Rows[0] in this case).

We create a new DataRow object for the destinationTable using the NewRow method. We then set the ItemArray property of the new row to the ItemArray property of the source row. This copies all the values from the source row to the new row.

Finally, we add the new row to the destinationTable using the Rows.Add method.

Note that if the source and destination tables have different column names or types, you will need to map the columns manually. You can do this using a loop to set the values of each column individually.

Examples

  1. "C# Copy DataRow from one DataTable to another using ImportRow"

    • Code:
      DataTable sourceTable = /* Source DataTable */; DataTable destinationTable = /* Destination DataTable */; DataRow sourceRow = sourceTable.Rows[0]; DataRow newRow = destinationTable.NewRow(); newRow.ItemArray = sourceRow.ItemArray; destinationTable.Rows.Add(newRow);
    • Description: Uses the ImportRow method to create a new row in the destination DataTable and copies the data from the source DataTable's row using the ItemArray property.

  2. "C# Copy DataRow from one DataTable to another using DataRow constructor"

    • Code:
      DataTable sourceTable = /* Source DataTable */; DataTable destinationTable = /* Destination DataTable */; DataRow sourceRow = sourceTable.Rows[0]; DataRow newRow = destinationTable.NewRow(); for (int i = 0; i < sourceRow.ItemArray.Length; i++) { newRow[i] = sourceRow[i]; } destinationTable.Rows.Add(newRow);
    • Description: Manually loops through the columns of the source row and copies each value to the corresponding column in the destination row.

  3. "C# Copy DataRow from one DataTable to another using ItemArray and Field"

    • Code:
      DataTable sourceTable = /* Source DataTable */; DataTable destinationTable = /* Destination DataTable */; DataRow sourceRow = sourceTable.Rows[0]; DataRow newRow = destinationTable.NewRow(); newRow.ItemArray = sourceRow.ItemArray.Clone() as object[]; destinationTable.Rows.Add(newRow);
    • Description: Uses the ItemArray property and Clone method to copy the entire array of values from the source row to the destination row.

  4. "C# Copy DataRow from one DataTable to another using DataRowCopy"

    • Code:
      DataTable sourceTable = /* Source DataTable */; DataTable destinationTable = /* Destination DataTable */; DataRow sourceRow = sourceTable.Rows[0]; DataRow newRow = sourceRow.Table.NewRow(); newRow.ItemArray = sourceRow.ItemArray; destinationTable.Rows.Add(newRow);
    • Description: Creates a new row in the destination DataTable using sourceRow.Table.NewRow() and then copies the data from the source row using ItemArray.

  5. "C# Copy DataRow from one DataTable to another using Select"

    • Code:
      DataTable sourceTable = /* Source DataTable */; DataTable destinationTable = /* Destination DataTable */; DataRow[] foundRows = sourceTable.Select("ID = 1"); // Example condition DataRow newRow = destinationTable.NewRow(); if (foundRows.Length > 0) { newRow.ItemArray = foundRows[0].ItemArray; destinationTable.Rows.Add(newRow); }
    • Description: Uses the Select method with a condition to find the source row, then copies the data to the destination row using ItemArray.

  6. "C# Copy DataRow from one DataTable to another using DataRowExtensions"

    • Code:
      DataTable sourceTable = /* Source DataTable */; DataTable destinationTable = /* Destination DataTable */; DataRow sourceRow = sourceTable.Rows[0]; DataRow newRow = destinationTable.NewRow(); newRow.ItemArray = sourceRow.ItemArray; destinationTable.Rows.Add(newRow);
    • Description: Utilizes the DataRowExtensions class to copy the entire row using the ItemArray property.

  7. "C# Copy DataRow from one DataTable to another using Dictionary"

    • Code:
      DataTable sourceTable = /* Source DataTable */; DataTable destinationTable = /* Destination DataTable */; DataRow sourceRow = sourceTable.Rows[0]; DataRow newRow = destinationTable.NewRow(); var columnDictionary = sourceTable.Columns.Cast<DataColumn>().ToDictionary(col => col.ColumnName); foreach (var columnName in columnDictionary.Keys) { newRow[columnName] = sourceRow[columnName]; } destinationTable.Rows.Add(newRow);
    • Description: Creates a dictionary with column names as keys, then iterates through the dictionary to copy values from the source row to the destination row.

  8. "C# Copy DataRow from one DataTable to another using LINQ"

    • Code:
      DataTable sourceTable = /* Source DataTable */; DataTable destinationTable = /* Destination DataTable */; DataRow sourceRow = sourceTable.Rows[0]; DataRow newRow = destinationTable.NewRow(); foreach (var column in sourceTable.Columns.Cast<DataColumn>()) { newRow[column.ColumnName] = sourceRow[column]; } destinationTable.Rows.Add(newRow);
    • Description: Uses LINQ to iterate through the columns of the source row and copy values to the corresponding columns in the destination row.

  9. "C# Copy DataRow from one DataTable to another using CopyToDataTable"

    • Code:
      DataTable sourceTable = /* Source DataTable */; DataTable destinationTable = /* Destination DataTable */; DataRow sourceRow = sourceTable.Rows[0]; DataTable tempTable = sourceTable.Clone(); tempTable.ImportRow(sourceRow); DataRow newRow = tempTable.Rows[0]; destinationTable.ImportRow(newRow);
    • Description: Uses ImportRow along with a temporary DataTable to copy a single row from one DataTable to another.

  10. "C# Copy DataRow from one DataTable to another using DefaultView"

    • Code:
      DataTable sourceTable = /* Source DataTable */; DataTable destinationTable = /* Destination DataTable */; DataRow sourceRow = sourceTable.Rows[0]; DataRow newRow = destinationTable.NewRow(); DataRowView sourceRowView = sourceRow.Table.DefaultView[0]; foreach (DataColumn column in sourceTable.Columns) { newRow[column.ColumnName] = sourceRowView[column.ColumnName]; } destinationTable.Rows.Add(newRow);
    • Description: Uses DefaultView to access a DataRowView and then copies values from the DataRowView to the destination row.

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