vtc_query_column

Deprecated. Use lrvtc_query_column. Retrieves the data in a field.

C Language

VTCERR2 vtc_query_column ( PVCI2 pvci, char *columnName, int rowIndex, char **outValue );

C# Language

string vts_multi.query_column ( long pvci, string columnName, int rowIndex );

Query Functions

Arguments

Name	Comments
pvci	The server connection handle.
columnName	The name of the column.
rowIndex	The number of the row. The first row has index 1.
outValue	The value of the field.

vtc_query_column retrieves the data in a field.

If there is no data in a cell, the output is NULL.

After using the output value, free the output buffer with vtc_free.

Return Values

C Language:   Returns zero on success or one of the Error Codes.

C# Language: Returns the value of the cell.

Parameterization

All string input arguments can be passed using standard parameterization.

C Language Example

int rc = 0;
char *value = NULL;

rc = vtc_query_column(pvci, "Col1", 1, &value);
lr_output_message("Query Column 1 Result = %s",
                   value);
vtc_free(value);

C# Language Example

.NET Multiple Connection Example