TdxCustomMemData.LoadFromTextFile(string) Method
Loads data from a plain text file.
#Declaration
procedure LoadFromTextFile(const AFileName: string); dynamic;
#Parameters
Name | Type | Description |
---|---|---|
AFile |
string | The source plain text file previously created by a Save |
#Remarks
Call the LoadFromTextFile
procedure to populate the memory-based dataset with data from a plain text file previously created by a SaveToTextFile procedure call. To define a character used as a column separator, use the DelimiterChar property.
Important
SaveLoad
procedures depend on the current locale settings. The Load
procedure may not be able to load a text file created on a machine with different locale settings.
To ensure that saved data is loaded correctly regardless of locale settings, use Save
#Code Example: Copy Data Between Datasets as Plain Text
The following code example sets a semicolon as a column separator and copies data between two memory-based datasets through a plain text file.
dxMemData1.DelimiterChar := ';'; // Sets a semicolon as a column separator
dxMemData1.SaveToTextFile(ExtractFileDir(Application.ExeName) + 'data.txt');
dxMemData2.DisableControls; // Disables data synchronization with bound controls
try
dxMemData2.DelimiterChar := ';'; // Sets a semicolon as a column separator
dxMemData2.LoadFromTextFile(ExtractFileDir(Application.ExeName) + 'data.txt');
finally
dxMemData2.EnableControls; // Re-enables data synchronization with bound controls
end;