DataSet.TryGetTable Method

Overview

Attempts to get a table by name without throwing. This method is useful for dynamic workflows (plugins, optional modules, conditional UI) where a table may or may not exist.

Namespace and Assembly

Namespace: PocoDataSet.Data
Assembly: PocoDataSet.Data.dll

Declaration

/// <summary>
/// Attempts to get a table by name.
/// IDataSet interface implementation
/// </summary>
/// <param name="tableName">Table name.</param>
/// <param name="dataTable">When this method returns true, contains the table.</param>
/// <returns>True if the table exists; otherwise false.</returns>
public bool TryGetTable(string tableName, out IDataTable? dataTable)

Usage Example

// 1. Create a data set with required Employee data table and optional Payroll data table
IDataSet dataSet = DataSetFactory.CreateDataSet();
dataSet.AddNewTable("Employee");

// 2. Try get Payroll data table, which is not part of data set
if (dataSet.TryGetTable("Payroll", out IDataTable? payrollDataTable))
{
    // If Payroll data tble exists then process payroll data
    int payrollColumnCount = payrollDataTable.Columns.Count;
}

// 3. Try get Employee data table, which is part of data set
if (dataSet.TryGetTable("Employee", out IDataTable? employeeDataTable))
{
    // If Employee data tble exists then process employee data
}
else
{
    throw new InvalidOperationException("Required table Employee is missing.");
}

 

Table of Content POCO DataSet API References POCO DataSet Types DataSet Members

 

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Business Process Programming in .Net
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