private System.Data.Common.UnsafeNativeMethods.ICommandWithParameters ICommandWithParameters()
{
Bid.Trace("<oledb.IUnknown.QueryInterface|API|OLEDB|command> %d#, ICommandWithParameters\n", this.ObjectID);
System.Data.Common.UnsafeNativeMethods.ICommandWithParameters parameters = this._icommandText as System.Data.Common.UnsafeNativeMethods.ICommandWithParameters;
if (parameters == null)
{
throw ODB.NoProviderSupportForParameters(this._connection.Provider, null);
}
return(parameters);
}
private void ApplyParameterBindings(System.Data.Common.UnsafeNativeMethods.ICommandWithParameters commandWithParameters, tagDBPARAMBINDINFO[] bindInfo)
{
IntPtr[] rgParamOrdinals = new IntPtr[bindInfo.Length];
for (int i = 0; i < rgParamOrdinals.Length; i++)
{
rgParamOrdinals[i] = (IntPtr)(i + 1);
}
Bid.Trace("<oledb.ICommandWithParameters.SetParameterInfo|API|OLEDB> %d#\n", this.ObjectID);
OleDbHResult result = commandWithParameters.SetParameterInfo((IntPtr)bindInfo.Length, rgParamOrdinals, bindInfo);
Bid.Trace("<oledb.ICommandWithParameters.SetParameterInfo|API|OLEDB|RET> %08X{HRESULT}\n", result);
if (result < OleDbHResult.S_OK)
{
this.ProcessResults(result);
}
}
private void CreateAccessor()
{
System.Data.Common.UnsafeNativeMethods.ICommandWithParameters commandWithParameters = this.ICommandWithParameters();
OleDbParameterCollection parameters = this._parameters;
OleDbParameter[] array = new OleDbParameter[parameters.Count];
parameters.CopyTo(array, 0);
Bindings bindings = new Bindings(array, parameters.ChangeID);
for (int i = 0; i < array.Length; i++)
{
bindings.ForceRebind |= array[i].BindParameter(i, bindings);
}
bindings.AllocateForAccessor(null, 0, 0);
this.ApplyParameterBindings(commandWithParameters, bindings.BindInfo);
System.Data.Common.UnsafeNativeMethods.IAccessor iaccessor = this.IAccessor();
OleDbHResult hr = bindings.CreateAccessor(iaccessor, 4);
if (hr < OleDbHResult.S_OK)
{
this.ProcessResults(hr);
}
this._dbBindings = bindings;
}
