Many software and projects have many files to save data, like .ini, .cfg, .config... And they use any small database hourly, like .mdb. Now, using XML files can replace these files to save any data, under the .NET framework. There are 4 steps that let us complete this mission :p.
Step 1: Building an XML file.
The XML file's formatting must be familiar to you. Like this:
If you open this XML file in VS.NET, you can see button "Data" in the IDE's left bottom. Click the button, you can see some tables from this XML file. Like this:
Step 2: Using a DataSet to read XML file.
Create a WinForm project. Add an
OpenFileDialog into the main form. We will use it to open the XML file. Like this:
DataSet ds=new DataSet();
Step 3: Control the DataSet.
DataSet instance, we can do some operations like select, add, delete, and update... This is a sample method to search some data:
public DataRow searchForm(string tables,string expression)
And you can add other methods easily. Like these methods:
public bool deleteRows(string tables,string expression)
for(int i=0;i<drs.Length;i++) <DRS.LENGTH;I++)<>drs[i].Delete();
Step 4: Using DataSet to save data.
One statement can finish the work. Like this:
Now see, the XML file can save data and we can use
DataSet to operate on the data :).
Sorry,my english is very poor.My name is ShangYuan Wang,and I am working in China GuangXi nanning city,a technology company named biztig.So
my nickname is biztig,and I have an other nickname that is jam_snake. I learned pascal in GuangXi University first at 5 years ago,but my favorite language is C# now.
The image is a famous star in china,and I am her fans.