ContainsKey Method

Overview

The ContainsKey method allows you to check whether a row contains a value for the specified column name. The ContainsKey method checks only for the presence of the specified column name in the row. It does not indicate whether the associated value is non-null.

Namespace and Assembly

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

Usage Example

// 1. Create an empty data set
IDataSet dataSet = DataSetFactory.CreateDataSet();

// 2. Create an empty data table
IDataTable departmentDataTable = dataSet.AddNewTable("Department");
departmentDataTable.AddColumn("Id", DataTypeNames.INT32);
departmentDataTable.AddColumn("Name", DataTypeNames.STRING);

// 3. Create a new row by AddNewRow method on data table, the row state is Added
IDataRow departmentDataRow = departmentDataTable.AddNewRow();
departmentDataRow["Name"] = "Emergency";

// Call ContainsKey method with existing column name and observe that it returns true
bool departmentDataRowContainsField = departmentDataRow.ContainsKey("Name");

// Call ContainsKey method with non-existing column name and observe that it returns false
departmentDataRowContainsField = departmentDataRow.ContainsKey("Code");

 

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

 

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Business Process Programming in .Net
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