TryGetValue Method

Overview

The TryGetValue method allows you to get the current value for the specified column.

The method returns true when the row contains the specified column; otherwise it returns false and outputs null.

This method does not consider row state and can be called for rows in any DataRowState.

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";

// 4. Call TryGetValue method to get "Emergency" value for the Name column
object? departmentName = null;
bool hasName = departmentDataRow.TryGetValue("Name", out departmentName);

// 5. Call TryGetValue method for a non-existing column and observe that it returns false and outputs null
bool hasCode = departmentDataRow.TryGetValue("Code", out departmentName);

 

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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