Utility Functions and C Language Reference > Virtual Table Server Functions (VTS) for C, C#, and Java > Virtual Table Server (VTS) Functions for Single Connection > Alphabetical Listing > lrvtc_update_message_ifequals

lrvtc_update_message_ifequals

Replaces the data in a field if the current data equals a given value.

C Language

VTCERR2 lrvtc_update_message_ifequals ( char *columnName, int rowIndex , char *value, char *ifEqualValue );

C# Language

void vts.update_message_ifequals ( string columnName, int rowIndex , string value, string ifEqualValue );

Java Language

intLrvtc.update_message_ifequals ( string columnName, int rowIndex , string value, string ifEqualValue );
Data Update Functions

Arguments

Name Comments
columnName The column to write to.
rowIndex The number of the row. The first row has index 1.
value The value to set the field to.
ifEqualValue The value to compare the current value of the field to.

lrvtc_update_message_ifequals writes the value to the field specified with the column name and row index if the value of the field when lrvtc_update_message_ifequals is called is equal to the ifEqualValue. If the ifEqualValue and the field value match, the field value is overwritten.

Return Values

C Language:

   0: If API call was successful but value was not updated.

   1: If API call was successful and value was updated.

   On call failure, one of the Error Codes.

C# Language: No return value.

Java Language:

   0: If API call was successful but value was not updated.

   1: If API call was successful and value was updated.

   On call failure, one of the Error Codes.

Parameterization

All string input arguments can be passed using standard parameterization.

C Language Example

    int rc;
    ....
    rc =  lrvtc_update_message_ifequals("P_status", 18, "out of stock","instock");
    lr_log_message("update_message rc=%d\n", rc);

	

C# Language Example

.Net Single Connection Example

Java Language Example

Java Single Connection Example