How to use StringEdit control as search in Axapta?

In the Purchtable form I have a StringEdit control.

When I type a PurchId in the StringEdit co开发者_JAVA技巧ntrol, it should act as a search and should retrieve the current PurchId in the Grid.

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Add a modified method to the controls method node:

public boolean modified()
{
    boolean ret = super();
    ;
    SysQuery::findOrCreateRange(purchTable_ds.queryRun().query().dataSourceNo(1), fieldNum(PurchTable,PurchId)).value(this.text());
    purchTable_ds.research();
    return ret;
}

This will add a PurchId query range to the PurchTable data source, fill it with your entered value, then do a research on the data source.

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You can accept Jan's answer, there's only a minor correction I want to add - I don't think it'll work with research, should be executeQuery instead:

public boolean modified()
{
    Query q;
    QueryBuildDataSource qbds;
    QueryBuildRange qbr;
    boolean ret;
    ;

    ret = super();

    q = purchTable_ds.queryRun().query();
    qbds = q.dataSourceTable(tablenum(PurchTable));
    qbr = SysQuery::findOrCreateRange(qbds, fieldNum(PurchTable,PurchId));
    qbr.value(this.text());
    PurchTable_ds.executeQuery();

    return ret;
}

Test it, anyway.