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Questions tagged [tdxmemdata]

TdxMemData is an ultra-fast in-memory TDataSet descendant VCL component included in the ExpressMemData package by Developer Express Inc.

TdxMemData can be used to bind data from any datasource in conjunction with all existing VCL data-aware controls (virtual Dataset).

ExpressMemData package is shipped with the DevExpress VCL components suite by Developer Express Inc.

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Check at TDataSet row against a filter string

I am using a DevExpress TdxMemData in memory TDataSet descendant. While it has Filtered: Boolean and Filter: String properties, it doesn't appear to actually do anything with them automatically, instead relying on the result of the OnFilterRecord…
Jim McKeeth
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TRESTResponseDataSetAdapter adds a row to the dataset if JSON-array is empty

If I have a TRESTResponseDataSetAdapter with RootElement = 'testdata' and provide it with the following JSON, it adds a row to the connected dataset. RESTResponseDataSetAdapter1.ResponseJSON := TRESTResponseJSON.Create( Form1, …
Magnus
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How can I use multiple TcxDBTextEdit with formatted data stored in a single DB field?

I have a need to store two values in a single database field (yes, I agree that it is bad practice, but this is a legacy database that can't be altered). The data is stored as string1#4string2. The data needs to be edited using two separate…
Magnus
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How to insert data into a TdxMemData in Borland Builder

I'm struggling to insert data into a TdxMemData which is linked to a grid by a TDataSourse. The MemData -called PurchaseData- has 3 columns: Date (date), Place (string) and Value (currency). I have a button that does the…
Gabriel
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In memory dataset (TdxMemData) unexpected results when filling with an Ordered Sql Statement

I have a dataset (TADODataset) that feeds into an in memory dataset(TdxMemData) which is assigned to a datasource (TDataSource). When I run the program and the SQL is not ordered by anything, the three records returned are displayed on 3 separate…
CodeMonkey
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incompatible types: widestring and tintegerfield

Does anyone know what this happens? I have declared all my database objects as integers as well as my dataset objects as integer when I run my ado query, I get values, from here, im trying to assign it as to a dataset, which is also declared as…
Fly
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