📄 tdataset_disablecontrols.htm

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<span style="font-family:Helvetica,Arial; font-size:12pt; color:#000000"><b>TDataSet.DisableControls
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Disables data display in data-aware controls associated with the dataset.
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<b>procedure </b>DisableControls;
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<b>Description</b>
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Call DisableControls prior to iterating through a large number of records in the dataset to prevent data-aware controls from updating every time the active record changes. Disabling controls prevents flicker and speeds performance because data does not need to be written to the display.
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If controls are not already disabled, DisableControls records the current state of the dataset, broadcasts the state change to all associated data-aware controls and detail datasets, and increments the dataset's disabled count variable. Otherwise, DisableControls just increments the disabled count variable.
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The disabled count is used internally by other methods and objects to determine whether to display data in data-aware controls. When the disable count variable is greater than zero, data is not displayed.
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If the dataset is the master of a master/detail relationship, calling DisableControls also disables the master/detail relationship. Setting BlockReadSize instead of calling DisableControls updates the detail datasets as you scroll through the dataset, but does not update data-aware controls.
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<b>Note:
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</b>DisableControls can safely be called when controls are already disabled. In complex applications there may be separate operations that are sometimes nested, both of which need to disable controls.
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