DeleteRowAt Method

Overview

The DeleteRowAt method deletes a row from an data table by its zero-based index. It is a convenience wrapper around DeleteRow that performs bounds checking and resolves the target IDataRow automatically.

The deletion itself is state-aware and is delegated to DeleteRow(IDataRow), which applies different behavior depending on the row's DataRowState.

Declaration

/// <summary>
/// Deletes row from table by row index
/// </summary>
/// <param name="dataTable">Data table</param>
/// <param name="rowIndex">Row index</param>
/// <exception cref="ArgumentOutOfRangeException">Exception is thrown if table does not have row with specified index</exception>
public static void DeleteRowAt(this IDataTable? dataTable, int rowIndex)

Namespace and Assembly

Namespace: PocoDataSet.Extensions
Assembly: PocoDataSet.Extensions.dll

Behavior

• If dataTable is null, returns immediately.
• If rowIndex is less than 0 or greater than or equal to dataTable.Rows.Count, returns immediately.
• Retrieves the row at rowIndex and delegates deletion to dataTable.DeleteRow(dataRow).

Usage Example

// 1. Create an empty data set and a table
IDataSet dataSet = DataSetFactory.CreateDataSet();
IDataTable employeeDataTable = dataSet.AddNewTable("Employee");
employeeDataTable.AddColumn("Id", DataTypeNames.INT32);
employeeDataTable.AddColumn("FirstName", DataTypeNames.STRING);
employeeDataTable.AddColumn("LastName", DataTypeNames.STRING);

// 2. Add a row in Added state
IDataRow employeeDataRow1 = employeeDataTable.AddNewRow();
employeeDataRow1["Id"] = 1;
employeeDataRow1["FirstName"] = "John";
employeeDataRow1["LastName"] = "Doe";

// 3. Add a row in Unchanged state
IDataRow employeeDataRow2 = employeeDataTable.AddNewRow();
employeeDataRow2["Id"] = 2;
employeeDataRow2["FirstName"] = "Sara";
employeeDataRow2["LastName"] = "Gor";
employeeDataRow2.AcceptChanges();

// 3. Add a row in Modified state
IDataRow employeeDataRow3 = employeeDataTable.AddNewRow();
employeeDataRow3["Id"] = 1;
employeeDataRow3["FirstName"] = "Paul";
employeeDataRow3["LastName"] = "Carry";
employeeDataRow3.AcceptChanges();
employeeDataRow3["FirstName"] = "Tom";

4. Call DeleteRowAt for each row
// Modifies row marked as deleted
employeeDataTable.DeleteRowAt(2);

// Unchanged row marked as deleted
employeeDataTable.DeleteRowAt(1);

// Added row removed from table
employeeDataTable.DeleteRowAt(0);

 

Table of Content POCO DataSet DataTable Extensions Group DataTable Members

 

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Business Process Programming in .Net
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